diff --git a/DOCUMENTATION.md b/DOCUMENTATION.md
index 2aeb4a16..0148b9b2 100644
--- a/DOCUMENTATION.md
+++ b/DOCUMENTATION.md
@@ -423,10 +423,10 @@ Renders a two-column grid of small bookmark cards, ordered by date of creation.
 
 ### Chapter List
 
-Renders a list of chapters identical to those on story pages, ordered by sequence in the source. Must have either the **story** or **chapters** parameter. Optional parameters are **count**, **offset**, **group**, **heading**, and **class**.
+Renders a list of chapters identical to those on story pages, ordered by sequence in the source. Must have either the **story_id** or **chapter_ids** parameter. Optional parameters are **count**, **offset**, **group**, **heading**, and **class**.
 
-* **story:** ID of a single story. You need either this or **chapters**.
-* **chapters:** Comma-separated list of chapter IDs. You need either this or **story**.
+* **story_id:** ID of a single story. You need either this or **chapters**.
+* **chapter_ids:** Comma-separated list of chapter IDs. You need either this or **story**.
 * **count:** Limit chapters to any positive number. Default `-1` (all).
 * **offset:** Skip a number of chapters, which can make sense if you query all.
 * **heading:** Show a heading with collapse toggle above the list.
@@ -487,7 +487,7 @@ Renders two buttons to deal with cookies, "Reset Consent" and "Clear Cookies". B
 
 ### Latest Chapters
 
-Renders a two-column grid of small cards, showing the latest four chapters ordered by publishing date, descending. Optional parameters are **count**, **type**, **author**, **order**, **orderby**, **spoiler**, **source**, **chapters**, **categories**, **tags**, **fandoms**, **genres**, **characters**, **rel**, and **class**.
+Renders a two-column grid of small cards, showing the latest four chapters ordered by publishing date, descending. Optional parameters are **count**, **type**, **author**, **order**, **orderby**, **spoiler**, **source**, **post_ids**, **categories**, **tags**, **fandoms**, **genres**, **characters**, **rel**, and **class**.
 
 * **count:** Limit chapters to any positive number, although you should keep it reasonable. Default `4`.
 * **type:** Either `default`, `simple`, or `compact`. The other variants are smaller with less data.
@@ -496,7 +496,7 @@ Renders a two-column grid of small cards, showing the latest four chapters order
 * **orderby:** The default is `date`, but you can also use `modified` and [more](https://developer.wordpress.org/reference/classes/wp_query/#order-orderby-parameters).
 * **spoiler:** The excerpt is obfuscated, set `true` if you want to reveal it. Default `false`.
 * **source:** Set `false` to hide the author and story nodes. Default `true`.
-* **chapters:** Comma-separated list of post IDs, if you want to pick from a curated pool.
+* **post_ids:** Comma-separated list of post IDs, if you want to pick from a curated pool.
 * **categories:** Comma-separated list of category names (case-insensitive), if you want to pick from a curated pool.
 * **tags:** Comma-separated list of tag names (case-insensitive), if you want to pick from a curated pool.
 * **fandoms:** Comma-separated list of fandom names (case-insensitive), if you want to pick from a curated pool.
@@ -521,11 +521,11 @@ Renders a two-column grid of small cards, showing the latest four chapters order
 
 ### Latest Posts
 
-Renders the last blog post or a list of blog posts, ignoring sticky posts, ordered by publishing date, descending. Optional parameters are **count**, **author**, **posts**, **categories**, **tags**, **rel**, and **class**.
+Renders the last blog post or a list of blog posts, ignoring sticky posts, ordered by publishing date, descending. Optional parameters are **count**, **author**, **post_ids**, **categories**, **tags**, **rel**, and **class**.
 
 * **count:** Limit posts to any positive number, although you should keep it reasonable. Default `1`.
 * **author:** Only show posts of a specific author. Make sure to write the name right.
-* **posts:** Comma-separated list of post IDs, if you want to pick from a curated pool.
+* **post_ids:** Comma-separated list of post IDs, if you want to pick from a curated pool.
 * **categories:** Comma-separated list of category names (case-insensitive), if you want to pick from a curated pool.
 * **tags:** Comma-separated list of tag names (case-insensitive), if you want to pick from a curated pool.
 * **rel:** Relationship between different taxonomies, either `AND` or `OR`. Default `AND`.
@@ -547,14 +547,14 @@ Renders the last blog post or a list of blog posts, ignoring sticky posts, order
 
 ### Latest Recommendations
 
-Renders a two-column grid of small cards, showing the latest four recommendations ordered by publishing date, descending. Optional parameters are **count**, **type**, **author**, **order**, **orderby**, **recommendations**, **categories**, **tags**, **fandoms**, **genres**, **characters**, **rel**, and **class**.
+Renders a two-column grid of small cards, showing the latest four recommendations ordered by publishing date, descending. Optional parameters are **count**, **type**, **author**, **order**, **orderby**, **post_ids**, **categories**, **tags**, **fandoms**, **genres**, **characters**, **rel**, and **class**.
 
 * **count:** Limit recommendations to any positive number, although you should keep it reasonable. Default `4`.
 * **type:** Either `default` or `compact`. The compact variant is smaller with less data.
 * **author:** Only show recommendations by a specific author. Make sure to write the name right.
 * **order:** Either `desc` (descending) or `asc` (ascending). Default `desc`.
 * **orderby:** The default is `date`, but you can also use `modified` and [more](https://developer.wordpress.org/reference/classes/wp_query/#order-orderby-parameters).
-* **recommendations:** Comma-separated list of post IDs, if you want to pick from a curated pool.
+* **post_ids:** Comma-separated list of post IDs, if you want to pick from a curated pool.
 * **categories:** Comma-separated list of category names (case-insensitive), if you want to pick from a curated pool.
 * **tags:** Comma-separated list of tag names (case-insensitive), if you want to pick from a curated pool.
 * **fandoms:** Comma-separated list of fandom names (case-insensitive), if you want to pick from a curated pool.
@@ -579,14 +579,14 @@ Renders a two-column grid of small cards, showing the latest four recommendation
 
 ### Latest Stories
 
-Renders a two-column grid of small cards, showing the latest four stories ordered by publishing date, descending. Optional parameters are **count**, **type**, **author**, **order**, **orderby**, **stories**, **exclude_cat_ids**, **exclude_tag_ids**, **categories**, **tags**, **fandoms**, **genres**, **characters**, **rel**, and **class**.
+Renders a two-column grid of small cards, showing the latest four stories ordered by publishing date, descending. Optional parameters are **count**, **type**, **author**, **order**, **orderby**, **post_ids**, **exclude_cat_ids**, **exclude_tag_ids**, **categories**, **tags**, **fandoms**, **genres**, **characters**, **rel**, and **class**.
 
 * **count:** Limit stories to any positive number, although you should keep it reasonable. Default `4`.
 * **type:** Either `default` or `compact`. The compact variant is smaller with less data.
 * **author:** Only show stories of a specific author. Make sure to spell the _username_ right.
 * **order:** Either `desc` (descending) or `asc` (ascending). Default `desc`.
 * **orderby:** The default is `date`, but you can also use `modified` and [more](https://developer.wordpress.org/reference/classes/wp_query/#order-orderby-parameters).
-* **stories:** Comma-separated list of post IDs, if you want to pick from a curated pool.
+* **post_ids:** Comma-separated list of post IDs, if you want to pick from a curated pool.
 * **exclude_cat_ids:** Comma-separated list of category IDs to exclude.
 * **exclude_tag_ids:** Comma-separated list of tag IDs to exclude.
 * **categories:** Comma-separated list of category names (case-insensitive), if you want to pick from a curated pool.
@@ -613,13 +613,13 @@ Renders a two-column grid of small cards, showing the latest four stories ordere
 
 ### Latest Updates
 
-Renders a two-column grid of small cards, showing the latest four updated stories ordered by date of the last chapter change, descending. Optional parameters are **count**, **type**, **author**, **order**, **stories**, **categories**, **tags**, **fandoms**, **genres**, **characters**, **rel**, and **class**.
+Renders a two-column grid of small cards, showing the latest four updated stories ordered by date of the last chapter change, descending. Optional parameters are **count**, **type**, **author**, **order**, **post_ids**, **categories**, **tags**, **fandoms**, **genres**, **characters**, **rel**, and **class**.
 
 * **count:** Limit updates to any positive number, although you should keep it reasonable. Default `4`.
 * **type:** Either `default`, `simple`, or `compact`. The other variants are smaller with less data.
 * **author:** Only show updates of a specific author. Make sure to write the name right.
 * **order:** Either `desc` (descending) or `asc` (ascending). Default `desc`.
-* **stories:** Comma-separated list of post IDs, if you want to pick from a curated pool.
+* **post_ids:** Comma-separated list of post IDs, if you want to pick from a curated pool.
 * **categories:** Comma-separated list of category names (case-insensitive), if you want to pick from a curated pool.
 * **tags:** Comma-separated list of tag names (case-insensitive), if you want to pick from a curated pool.
 * **fandoms:** Comma-separated list of fandom names (case-insensitive), if you want to pick from a curated pool.
@@ -661,14 +661,14 @@ Renders the search form with advanced options (if not disabled in the settings).
 
 ### Showcase
 
-Renders dynamic grid of thumbnails with title, showing the latest eight posts of the specified type ordered by publishing date, descending. Requires **for** parameter. Optional parameters are **count**, **author**, **order**, **orderby**, **posts**, **no_cap**, and **class**. The thumbnail is either the **Landscape Image** or **Cover Image** (if available), with chapters defaulting to the parent story.
+Renders dynamic grid of thumbnails with title, showing the latest eight posts of the specified type ordered by publishing date, descending. Requires **for** parameter. Optional parameters are **count**, **author**, **order**, **orderby**, **post_ids**, **no_cap**, and **class**. The thumbnail is either the **Landscape Image** or **Cover Image** (if available), with chapters defaulting to the parent story.
 
 * **for:** Desired post type, either `stories`, `chapters`, `collections`, or `recommendations`.
 * **count:** Limit posts to any positive number, although you should keep it reasonable. Default `8`.
 * **author:** Only show posts for a specific author. Make sure to write the name right.
 * **order:** Either `desc` (descending) or `asc` (ascending). Default `desc`.
 * **orderby:** The default is `date`, but you can also use `rand` and [more](https://developer.wordpress.org/reference/classes/wp_query/#order-orderby-parameters).
-* **posts:** Comma-separated list of post IDs, if you want to pick from a curated pool.
+* **post_ids:** Comma-separated list of post IDs, if you want to pick from a curated pool.
 * **no_cap:** Set `true` if you want to hide the caption.
 * **class:** Additional CSS classes, separated by whitespace.
 
diff --git a/includes/functions/_shortcodes.php b/includes/functions/_shortcodes.php
index f6e99377..97e11632 100644
--- a/includes/functions/_shortcodes.php
+++ b/includes/functions/_shortcodes.php
@@ -237,8 +237,8 @@ function fictioneer_shortcode_showcase( $attr ) {
   $classes = [];
 
   // Post IDs
-  if ( ! empty( $attr['posts'] ) ) {
-    $post_ids = fictioneer_explode_list( $attr['posts'] );
+  if ( ! empty( $attr['post_ids'] ) ) {
+    $post_ids = fictioneer_explode_list( $attr['post_ids'] );
   }
 
   // Relation
@@ -304,7 +304,7 @@ add_shortcode( 'fictioneer_showcase', 'fictioneer_shortcode_showcase' );
  * @param string|null $attr['type']       Optional. Choose between 'default', 'simple', and 'compact'.
  * @param string|null $attr['spoiler']    Optional. Whether to show spoiler content.
  * @param string|null $attr['source']     Optional. Whether to show author and story.
- * @param string|null $attr['chapters']   Optional. Limit items to specific post IDs.
+ * @param string|null $attr['post_ids']   Optional. Limit items to specific post IDs.
  * @param string|null $attr['categories'] Optional. Limit items to specific category names.
  * @param string|null $attr['tags']       Optional. Limit items to specific tag names.
  * @param string|null $attr['fandoms']    Optional. Limit items to specific fandom names.
@@ -330,8 +330,8 @@ function fictioneer_shortcode_latest_chapters( $attr ) {
   $classes = [];
 
   // Post IDs
-  if ( ! empty( $attr['chapters'] ) ) {
-    $post_ids = fictioneer_explode_list( $attr['chapters'] );
+  if ( ! empty( $attr['post_ids'] ) ) {
+    $post_ids = fictioneer_explode_list( $attr['post_ids'] );
     $count = count( $post_ids );
   }
 
@@ -390,7 +390,7 @@ add_shortcode( 'fictioneer_chapter_cards', 'fictioneer_shortcode_latest_chapters
  * @param string|null $attr['author']     Optional. Limit items to a specific author.
  * @param string|null $attr['type']       Optional. Choose between 'default' and 'compact'.
  * @param string|null $attr['orderby']    Optional. Order argument. Default 'date'.
- * @param string|null $attr['stories']    Optional. Limit items to specific post IDs.
+ * @param string|null $attr['post_ids']   Optional. Limit items to specific post IDs.
  * @param string|null $attr['categories'] Optional. Limit items to specific category names.
  * @param string|null $attr['tags']       Optional. Limit items to specific tag names.
  * @param string|null $attr['fandoms']    Optional. Limit items to specific fandom names.
@@ -414,8 +414,8 @@ function fictioneer_shortcode_latest_stories( $attr ) {
   $classes = [];
 
   // Post IDs
-  if ( ! empty( $attr['stories'] ) ) {
-    $post_ids = fictioneer_explode_list( $attr['stories'] );
+  if ( ! empty( $attr['post_ids'] ) ) {
+    $post_ids = fictioneer_explode_list( $attr['post_ids'] );
     $count = count( $post_ids );
   }
 
@@ -434,6 +434,8 @@ function fictioneer_shortcode_latest_stories( $attr ) {
     'order' => $order,
     'orderby' => $orderby,
     'post_ids' => $post_ids,
+    'excluded_tags' => fictioneer_explode_list( $attr['exclude_tag_ids'] ?? '' ),
+    'excluded_cats' => fictioneer_explode_list( $attr['exclude_cat_ids'] ?? '' ),
     'taxonomies' => fictioneer_get_shortcode_taxonomies( $attr ),
     'relation' => $rel,
     'classes' => $classes
@@ -469,7 +471,7 @@ add_shortcode( 'fictioneer_story_cards', 'fictioneer_shortcode_latest_stories' )
  * @param string|null $attr['count']      Optional. Maximum number of items. Default 4.
  * @param string|null $attr['author']     Optional. Limit items to a specific author.
  * @param string|null $attr['type']       Optional. Choose between 'default', 'simple', and 'compact'.
- * @param string|null $attr['stories']    Optional. Limit items to specific post IDs.
+ * @param string|null $attr['post_ids']   Optional. Limit items to specific post IDs.
  * @param string|null $attr['categories'] Optional. Limit items to specific category names.
  * @param string|null $attr['tags']       Optional. Limit items to specific tag names.
  * @param string|null $attr['fandoms']    Optional. Limit items to specific fandom names.
@@ -492,8 +494,8 @@ function fictioneer_shortcode_latest_story_updates( $attr ) {
   $classes = [];
 
   // Post IDs
-  if ( ! empty( $attr['stories'] ) ) {
-    $post_ids = fictioneer_explode_list( $attr['stories'] );
+  if ( ! empty( $attr['post_ids'] ) ) {
+    $post_ids = fictioneer_explode_list( $attr['post_ids'] );
     $count = count( $post_ids );
   }
 
@@ -544,17 +546,17 @@ add_shortcode( 'fictioneer_update_cards', 'fictioneer_shortcode_latest_story_upd
  *
  * @since 4.0
  *
- * @param string|null $attr['count']           Optional. Maximum number of items. Default 4.
- * @param string|null $attr['author']          Optional. Limit items to a specific author.
- * @param string|null $attr['type']            Optional. Choose between 'default' and 'compact'.
- * @param string|null $attr['recommendations'] Optional. Limit items to specific post IDs.
- * @param string|null $attr['categories']      Optional. Limit items to specific category names.
- * @param string|null $attr['tags']            Optional. Limit items to specific tag names.
- * @param string|null $attr['fandoms']         Optional. Limit items to specific fandom names.
- * @param string|null $attr['genres']          Optional. Limit items to specific genre names.
- * @param string|null $attr['characters']      Optional. Limit items to specific character names.
- * @param string|null $attr['rel']             Optional. Relationship between taxonomies. Default 'AND'.
- * @param string|null $attr['class']           Optional. Additional CSS classes, separated by whitespace.
+ * @param string|null $attr['count']      Optional. Maximum number of items. Default 4.
+ * @param string|null $attr['author']     Optional. Limit items to a specific author.
+ * @param string|null $attr['type']       Optional. Choose between 'default' and 'compact'.
+ * @param string|null $attr['post_ids']   Optional. Limit items to specific post IDs.
+ * @param string|null $attr['categories'] Optional. Limit items to specific category names.
+ * @param string|null $attr['tags']       Optional. Limit items to specific tag names.
+ * @param string|null $attr['fandoms']    Optional. Limit items to specific fandom names.
+ * @param string|null $attr['genres']     Optional. Limit items to specific genre names.
+ * @param string|null $attr['characters'] Optional. Limit items to specific character names.
+ * @param string|null $attr['rel']        Optional. Relationship between taxonomies. Default 'AND'.
+ * @param string|null $attr['class']      Optional. Additional CSS classes, separated by whitespace.
  *
  * @return string The rendered shortcode HTML.
  */
@@ -571,8 +573,8 @@ function fictioneer_shortcode_latest_recommendations( $attr ) {
   $classes = [];
 
   // Post IDs
-  if ( ! empty( $attr['recommendations'] ) ) {
-    $post_ids = fictioneer_explode_list( $attr['recommendations'] );
+  if ( ! empty( $attr['post_ids'] ) ) {
+    $post_ids = fictioneer_explode_list( $attr['post_ids'] );
     $count = count( $post_ids );
   }
 
@@ -625,7 +627,7 @@ add_shortcode( 'fictioneer_recommendation_cards', 'fictioneer_shortcode_latest_r
  *
  * @param string|null $attr['count']      Optional. Maximum number of items. Default 1.
  * @param string|null $attr['author']     Optional. Limit items to a specific author.
- * @param string|null $attr['posts']      Optional. Limit items to specific post IDs.
+ * @param string|null $attr['post_ids']   Optional. Limit items to specific post IDs.
  * @param string|null $attr['categories'] Optional. Limit items to specific category names.
  * @param string|null $attr['tags']       Optional. Limit items to specific tag names.
  * @param string|null $attr['rel']        Optional. Relationship between taxonomies. Default 'AND'.
@@ -643,8 +645,8 @@ function fictioneer_shortcode_latest_posts( $attr ) {
   $classes = [];
 
   // Post IDs
-  if ( ! empty( $attr['posts'] ) ) {
-    $post_ids = fictioneer_explode_list( $attr['posts'] );
+  if ( ! empty( $attr['post_ids'] ) ) {
+    $post_ids = fictioneer_explode_list( $attr['post_ids'] );
     $count = count( $post_ids );
   }
 
@@ -743,13 +745,13 @@ add_shortcode( 'fictioneer_cookie_buttons', 'fictioneer_shortcode_cookie_buttons
  * @see fictioneer_validate_id()
  * @see fictioneer_get_story_data()
  *
- * @param string      $attr['story']    Either/Or. The ID of the story the chapters belong to.
- * @param string|null $attr['chapters'] Either/Or. IDs of chapters to display.
- * @param string|null $attr['count']    Optional. Maximum number of items. Default -1 (all).
- * @param string|null $attr['offset']   Optional. Skip a number of posts.
- * @param string|null $attr['group']    Optional. Only show chapters of the group.
- * @param string|null $attr['heading']  Optional. Show <h5> heading above list.
- * @param string|null $attr['class']    Optional. Additional CSS classes, separated by whitespace.
+ * @param string      $attr['story_id']    Either/Or. The ID of the story the chapters belong to.
+ * @param string|null $attr['chapter_ids'] Either/Or. Comma-separated list of chapter IDs.
+ * @param string|null $attr['count']       Optional. Maximum number of items. Default -1 (all).
+ * @param string|null $attr['offset']      Optional. Skip a number of posts.
+ * @param string|null $attr['group']       Optional. Only show chapters of the group.
+ * @param string|null $attr['heading']     Optional. Show <h5> heading above list.
+ * @param string|null $attr['class']       Optional. Additional CSS classes, separated by whitespace.
  *
  * @return string The rendered shortcode HTML.
  */
@@ -778,14 +780,14 @@ function fictioneer_shortcode_chapter_list( $attr ) {
   $empty = ob_get_clean();
 
   // Abort if...
-  if ( empty( $attr['story'] ) && empty( $attr['chapters'] ) ) return $empty;
+  if ( empty( $attr['story_id'] ) && empty( $attr['chapter_ids'] ) ) return $empty;
 
   // Setup
   $count = max( -1, intval( $attr['count'] ?? -1 ) );
   $offset = max( 0, intval( $attr['offset'] ?? 0 ) );
   $group = empty( $attr['group'] ) ? false : trim( $attr['group'] );
   $heading = empty( $attr['heading'] ) ? false : $attr['heading'];
-  $story_id = fictioneer_validate_id( $attr['story'] ?? -1, 'fcn_story' );
+  $story_id = fictioneer_validate_id( $attr['story_id'] ?? -1, 'fcn_story' );
   $hide_icons = get_option( 'fictioneer_hide_chapter_icons' );
   $can_checkmarks = get_option( 'fictioneer_enable_checkmarks' );
   $chapter_ids = [];
@@ -793,10 +795,8 @@ function fictioneer_shortcode_chapter_list( $attr ) {
   $classes = [];
 
   // Extract chapter IDs (if any)
-  if ( ! empty( $attr['chapters'] ) ) {
-    $chapter_ids = str_replace( ' ', '', $attr['chapters'] );
-    $chapter_ids = explode( ',', $chapter_ids );
-    $chapter_ids = is_array( $chapter_ids ) ? $chapter_ids : [];
+  if ( ! empty( $attr['chapter_ids'] ) ) {
+    $chapter_ids = fictioneer_explode_list( $attr['chapter_ids'] );
   }
 
   // Get chapters...
@@ -955,15 +955,15 @@ add_shortcode( 'fictioneer_chapter_list', 'fictioneer_shortcode_chapter_list' );
  *
  * @since 5.0
  *
- * @param string|null  $attr['title']          Optional. Title of the form.
- * @param string|null  $attr['submit']         Optional. Submit button caption.
- * @param string|null  $attr['privacy_policy'] Optional. Must accept privacy policy.
- * @param string|null $attr['required']        Optional. Make all fields required
- * @param string|null  $attr['email']          Optional. Email field.
- * @param string|null  $attr['name']           Optional. Name field.
- * @param string|null  $attr["text_{$i}"]      Optional. Up to 6 extra text field(s).
- * @param string|null  $attr["check_{$i}"]     Optional. Up to 6 extra checkbox field(s).
- * @param string|null  $attr['class']          Optional. Additional CSS classes, separated by whitespace.
+ * @param string|null $attr['title']          Optional. Title of the form.
+ * @param string|null $attr['submit']         Optional. Submit button caption.
+ * @param string|null $attr['privacy_policy'] Optional. Must accept privacy policy.
+ * @param string|null $attr['required']       Optional. Make all fields required
+ * @param string|null $attr['email']          Optional. Email field.
+ * @param string|null $attr['name']           Optional. Name field.
+ * @param string|null $attr["text_{$i}"]      Optional. Up to 6 extra text field(s).
+ * @param string|null $attr["check_{$i}"]     Optional. Up to 6 extra checkbox field(s).
+ * @param string|null $attr['class']          Optional. Additional CSS classes, separated by whitespace.
  *
  * @return string The rendered shortcode HTML.
  */