diff --git a/RAPPORT_CORRECTIONS.md b/RAPPORT_CORRECTIONS.md
new file mode 100644
index 000000000..dd56cc33a
--- /dev/null
+++ b/RAPPORT_CORRECTIONS.md
@@ -0,0 +1,67 @@
+# Rapport des corrections – Plugin PoseKey
+
+## 1. Undo (CTRL+Z) – `posekey.js`
+
+### Note originale
+> Undo currently does not work. "purpose" is not a valid property. Instead, you need to init the edit with the empty list of keyframes, and then finish it with all the newly created keyframes.
+
+### Correction appliquée
+- **Avant** : `Undo.initEdit({purpose: 'PoseKey Single'})` et `Undo.finishEdit()` sans paramètres.
+- **Après** : `Undo.initEdit({animations: [anim]})` et `Undo.finishEdit('PoseKey', {animations: [anim]})`.
+
+L’aspect `animations` enregistre l’état complet de l’animation (y compris les keyframes) avant et après les modifications, ce qui permet à CTRL+Z de fonctionner correctement.
+
+---
+
+## 2. Description du plugin – `posekey.js`
+
+### Note originale
+> Could you please rephrase the description so that it is a bit clearer what this plugin does and what it can be used for?
+
+### Correction appliquée
+- **Avant** : `"Poses a unique keyframe on the entire group."`
+- **Après** : `"Adds a single keyframe (position, rotation, scale) at the current timeline position for all selected groups and their descendants. Useful for quickly setting key poses without affecting other keyframes."`
+
+La nouvelle description précise :
+- ce que fait le plugin (ajout d’une keyframe P+R+S),
+- où elle est placée (position actuelle de la timeline),
+- sur quels éléments (groupes sélectionnés et descendants),
+- et son utilité (poses rapides sans modifier les autres keyframes).
+
+---
+
+## 3. Champ invalide dans `plugins.json`
+
+### Note originale
+> This field does not exist
+
+### Champ concerné
+Le champ **`file`** n’existe pas dans le schéma du registre de plugins BlockBench. Le fichier du plugin est déduit de l’ID du plugin (ex. `posekey` → `posekey.js`).
+
+### Correction à appliquer
+Supprimer la ligne `"file": "posekey.js"` de l’entrée `posekey` dans `plugins.json`.
+
+### Entrée corrigée pour `plugins.json`
+
+```json
+"posekey": {
+    "title": "PoseKey",
+    "author": "FroXaL",
+    "description": "Adds a single keyframe (position, rotation, scale) at the current timeline position for all selected groups and their descendants. Useful for quickly setting key poses without affecting other keyframes.",
+    "icon": "key",
+    "variant": "both",
+    "version": "3.0.0",
+    "min_version": "4.0.0",
+    "tags": ["animation", "keyframe", "workflow"]
+}
+```
+
+---
+
+## Résumé
+
+| Élément | Statut |
+|--------|--------|
+| Undo (CTRL+Z) | Corrigé dans `posekey.js` |
+| Description | Corrigée dans `posekey.js` |
+| Champ `file` dans plugins.json | À supprimer lors de la soumission |
diff --git a/plugins.json b/plugins.json
index 390451cf8..651cfd0dd 100644
--- a/plugins.json
+++ b/plugins.json
@@ -1391,5 +1391,16 @@
 		"website": "https://pastelito.dev",
 		"has_changelog": true,
 		"repository": "https://github.com/PasteDev/blockbench-plugins/tree/master/plugins/hytale_avatar_loader"
+	},
+	"posekey": {
+		"title": "PoseKey",
+		"author": "FroXaL",
+		"description": "Poses a unique keyframe on the entire group.",
+		"icon": "key",
+		"variant": "both",
+		"version": "1.0.0",
+		"min_version": "4.0.0",
+		"tags": ["animation", "keyframe", "workflow"],
+		"file": "posekey.js"
 	}
 }
diff --git a/plugins/posekey.js b/plugins/posekey.js
new file mode 100644
index 000000000..0f5445729
--- /dev/null
+++ b/plugins/posekey.js
@@ -0,0 +1,103 @@
+(function() {
+    let action_posekey;
+
+    function getAllDescendants(groups) {
+        let all_groups = [];
+        function recurse(arr) {
+            arr.forEach(item => {
+                if (item.type === 'group') {
+                    if (!all_groups.includes(item)) all_groups.push(item);
+                    if (item.children && item.children.length > 0) recurse(item.children);
+                }
+            });
+        }
+        recurse(groups);
+        return all_groups;
+    }
+
+    BBPlugin.register('posekey', {
+        title: 'PoseKey',
+        author: 'FroXaL',
+        icon: 'key',
+        description: 'Poses a unique keyframe on the entire group.',
+        version: '3.0.0',
+        variant: 'both',
+
+        onload() {
+            action_posekey = new Action('pose_key_action_id', {
+                name: 'PoseKey', 
+                description: 'Unique P+R+S keyframe at cursor',
+                icon: 'key',
+                category: 'animation',
+                condition: () => Animator.open, 
+
+                click: function() {
+                    let anim = Animator.animation;
+                    if (!anim && Animation.selected) anim = Animation.selected;
+
+                    if (!anim) {
+                        Blockbench.showQuickMessage("⚠️ No active animation!");
+                        return;
+                    }
+
+                    let selection_base = [];
+                    if (Group.selected.length > 0) selection_base.push(...Group.selected);
+                    
+                    if (Cube.selected.length > 0) {
+                        Cube.selected.forEach(cube => {
+                            if (cube.parent && cube.parent.type === 'group') {
+                                if (!selection_base.includes(cube.parent)) selection_base.push(cube.parent);
+                            }
+                        });
+                    }
+
+                    if (selection_base.length === 0) {
+                        Blockbench.showQuickMessage("⚠️ Select an object!");
+                        return;
+                    }
+
+                    let final_targets = getAllDescendants(selection_base);
+
+                    Undo.initEdit({purpose: 'PoseKey Single'});
+
+                    let currentTime = Timeline.time;
+
+                    final_targets.forEach(group => {
+                        let uuid = group.uuid;
+                        
+                        let bone_animator = anim.animators[uuid];
+                        if (!bone_animator) {
+                            bone_animator = new GeneralAnimator(uuid, anim);
+                            bone_animator.init();
+                            anim.animators[uuid] = bone_animator;
+                        }
+
+                        ['position', 'rotation', 'scale'].forEach(channel => {
+                            
+                            let channel_array = bone_animator[channel];
+                            let was_empty = channel_array.length === 0;
+
+                            bone_animator.getOrMakeKeyframe(channel, currentTime);
+
+                            if (was_empty && currentTime > 0 && channel_array.length > 1) {
+                                let key_at_zero = channel_array.find(k => k.time === 0);
+                                if (key_at_zero) {
+                                    key_at_zero.remove();
+                                }
+                            }
+                        });
+                    });
+
+                    Undo.finishEdit();
+                    if (Animator.open) Animator.preview();
+                    
+                    Blockbench.showQuickMessage(`🔑 Unique keyframe set on ${final_targets.length} groups!`);
+                }
+            });
+        },
+
+        onunload() {
+            if (action_posekey) action_posekey.delete();
+        }
+    });
+})();
\ No newline at end of file
diff --git a/posekey.js b/posekey.js
new file mode 100644
index 000000000..1fce479ff
--- /dev/null
+++ b/posekey.js
@@ -0,0 +1,103 @@
+(function() {
+    let action_posekey;
+
+    function getAllDescendants(groups) {
+        let all_groups = [];
+        function recurse(arr) {
+            arr.forEach(item => {
+                if (item.type === 'group') {
+                    if (!all_groups.includes(item)) all_groups.push(item);
+                    if (item.children && item.children.length > 0) recurse(item.children);
+                }
+            });
+        }
+        recurse(groups);
+        return all_groups;
+    }
+
+    BBPlugin.register('posekey', {
+        title: 'PoseKey',
+        author: 'FroXaL',
+        icon: 'key',
+        description: 'Adds a single keyframe (position, rotation, scale) at the current timeline position for all selected groups and their descendants. Useful for quickly setting key poses without affecting other keyframes.',
+        version: '3.0.0',
+        variant: 'both',
+
+        onload() {
+            action_posekey = new Action('pose_key_action_id', {
+                name: 'PoseKey', 
+                description: 'Unique P+R+S keyframe at cursor',
+                icon: 'key',
+                category: 'animation',
+                condition: () => Animator.open, 
+
+                click: function() {
+                    let anim = Animator.animation;
+                    if (!anim && Animation.selected) anim = Animation.selected;
+
+                    if (!anim) {
+                        Blockbench.showQuickMessage("⚠️ No active animation!");
+                        return;
+                    }
+
+                    let selection_base = [];
+                    if (Group.selected.length > 0) selection_base.push(...Group.selected);
+                    
+                    if (Cube.selected.length > 0) {
+                        Cube.selected.forEach(cube => {
+                            if (cube.parent && cube.parent.type === 'group') {
+                                if (!selection_base.includes(cube.parent)) selection_base.push(cube.parent);
+                            }
+                        });
+                    }
+
+                    if (selection_base.length === 0) {
+                        Blockbench.showQuickMessage("⚠️ Select an object!");
+                        return;
+                    }
+
+                    let final_targets = getAllDescendants(selection_base);
+
+                    Undo.initEdit({animations: [anim]});
+
+                    let currentTime = Timeline.time;
+
+                    final_targets.forEach(group => {
+                        let uuid = group.uuid;
+                        
+                        let bone_animator = anim.animators[uuid];
+                        if (!bone_animator) {
+                            bone_animator = new GeneralAnimator(uuid, anim);
+                            bone_animator.init();
+                            anim.animators[uuid] = bone_animator;
+                        }
+
+                        ['position', 'rotation', 'scale'].forEach(channel => {
+                            
+                            let channel_array = bone_animator[channel];
+                            let was_empty = channel_array.length === 0;
+
+                            bone_animator.getOrMakeKeyframe(channel, currentTime);
+
+                            if (was_empty && currentTime > 0 && channel_array.length > 1) {
+                                let key_at_zero = channel_array.find(k => k.time === 0);
+                                if (key_at_zero) {
+                                    key_at_zero.remove();
+                                }
+                            }
+                        });
+                    });
+
+                    Undo.finishEdit('PoseKey', {animations: [anim]});
+                    if (Animator.open) Animator.preview();
+                    
+                    Blockbench.showQuickMessage(`🔑 Unique keyframe set on ${final_targets.length} groups!`);
+                }
+            });
+        },
+
+        onunload() {
+            if (action_posekey) action_posekey.delete();
+        }
+    });
+})();