diff --git a/extensions/reviewed/PanelSpriteButton.json b/extensions/reviewed/PanelSpriteButton.json
index d74aa8444..1788c2dca 100644
--- a/extensions/reviewed/PanelSpriteButton.json
+++ b/extensions/reviewed/PanelSpriteButton.json
@@ -8,7 +8,7 @@
   "name": "PanelSpriteButton",
   "previewIconUrl": "https://resources.gdevelop-app.com/assets/Icons/Line Hero Pack/Master/SVG/Interface Elements/Interface Elements_interface_ui_button_ok_cta_clock_tap.svg",
   "shortDescription": "A button that can be customized.",
-  "version": "1.4.3",
+  "version": "1.4.4",
   "description": [
     "The button can be customized with a background for each state and a label. It handles user interactions and a simple condition can be used to check if it is clicked.",
     "",
@@ -60,8 +60,7 @@
                     "textG": 0,
                     "textR": 0
                   },
-                  "comment": "The \"Validated\" state only last one frame.",
-                  "comment2": ""
+                  "comment": "The \"Validated\" state only last one frame."
                 },
                 {
                   "type": "BuiltinCommonInstructions::Standard",
@@ -111,8 +110,7 @@
                         "textG": 0,
                         "textR": 0
                       },
-                      "comment": "Make sure the cursor position is only checked once per frame.",
-                      "comment2": ""
+                      "comment": "Make sure the cursor position is only checked once per frame."
                     },
                     {
                       "type": "BuiltinCommonInstructions::Standard",
@@ -176,8 +174,7 @@
                         "textG": 0,
                         "textR": 0
                       },
-                      "comment": "Touches are always pressed, so ShouldCheckHovering doesn't matter.",
-                      "comment2": ""
+                      "comment": "Touches are always pressed, so ShouldCheckHovering doesn't matter."
                     },
                     {
                       "type": "BuiltinCommonInstructions::Standard",
@@ -1231,8 +1228,7 @@
                 "textG": 0,
                 "textR": 0
               },
-              "comment": "Create one background instance for of each state.\nOnly the instance for the current state is shown.",
-              "comment2": ""
+              "comment": "Create one background instance for of each state.\nOnly the instance for the current state is shown."
             },
             {
               "type": "BuiltinCommonInstructions::Standard",
@@ -1312,8 +1308,7 @@
                 "textG": 0,
                 "textR": 0
               },
-              "comment": "Place the label over the backgrounds.",
-              "comment2": ""
+              "comment": "Place the label over the backgrounds."
             },
             {
               "type": "BuiltinCommonInstructions::Standard",
@@ -1444,8 +1439,7 @@
                     "textG": 0,
                     "textR": 0
                   },
-                  "comment": "Show the right background accordingly to the new state.",
-                  "comment2": ""
+                  "comment": "Show the right background accordingly to the new state."
                 },
                 {
                   "type": "BuiltinCommonInstructions::Standard",
@@ -1810,8 +1804,7 @@
                     "textG": 0,
                     "textR": 0
                   },
-                  "comment": "Children instances must be resized when the button size change:\n- backgrounds for each state are resized to take the full dimensions of the button\n- the label is put back at the center of the button\n\nThe scale is set back to 1 because it means that the parent instance has the same dimensions as the union of its children instances.",
-                  "comment2": ""
+                  "comment": "Children instances must be resized when the button size change:\n- backgrounds for each state are resized to take the full dimensions of the button\n- the label is put back at the center of the button\n\nThe scale is set back to 1 because it means that the parent instance has the same dimensions as the union of its children instances."
                 },
                 {
                   "type": "BuiltinCommonInstructions::Standard",
@@ -2194,7 +2187,7 @@
               "type": "object"
             },
             {
-              "description": "",
+              "description": "Text",
               "name": "LabelText",
               "type": "string"
             }
diff --git a/scripts/lib/ExtensionValidator.js b/scripts/lib/ExtensionValidator.js
index 5109524f5..b209ac118 100644
--- a/scripts/lib/ExtensionValidator.js
+++ b/scripts/lib/ExtensionValidator.js
@@ -28,16 +28,23 @@ const loadRules = (async function loadRules() {
 async function validateExtension(extensionWithFileInfo) {
   /** @type {Error[]} */
   const errors = [];
-  const { eventsBasedBehaviors, eventsFunctions } =
+  const { eventsBasedBehaviors, eventsBasedObjects, eventsFunctions } =
     extensionWithFileInfo.extension;
 
+  const behaviorFunctions = eventsBasedBehaviors.flatMap(
+    ({ eventsFunctions }) => eventsFunctions
+  );
+  const objectFunctions = eventsBasedObjects
+    ? eventsBasedObjects.flatMap(({ eventsFunctions }) => eventsFunctions)
+    : [];
   /**
    * A list of all events functions of the extension.
    * @type {EventsFunction[]}
    */
-  const allEventsFunctions = eventsFunctions.concat(
-    eventsBasedBehaviors.flatMap(({ eventsFunctions }) => eventsFunctions)
-  );
+  const allEventsFunctions = [];
+  Array.prototype.push.apply(allEventsFunctions, eventsFunctions);
+  Array.prototype.push.apply(allEventsFunctions, behaviorFunctions);
+  Array.prototype.push.apply(allEventsFunctions, objectFunctions);
 
   /**
    * A list of all events functions that will be used by extension users (non-lifecycle and non-private functions).
diff --git a/scripts/lib/ExtensionsValidatorExceptions.js b/scripts/lib/ExtensionsValidatorExceptions.js
index 17ce5f07d..3d41b9100 100644
--- a/scripts/lib/ExtensionsValidatorExceptions.js
+++ b/scripts/lib/ExtensionsValidatorExceptions.js
@@ -43,6 +43,7 @@ const lifecycleFunctions = new Set([
   'onSceneResumed',
   'onScenePostEvents',
   'onScenePreEvents',
+  'onHotReloading',
 ]);
 
 /**
diff --git a/scripts/lib/rules/FilledOutDescriptions.js b/scripts/lib/rules/FilledOutDescriptions.js
index 4ce4b2258..3419d768f 100644
--- a/scripts/lib/rules/FilledOutDescriptions.js
+++ b/scripts/lib/rules/FilledOutDescriptions.js
@@ -1,6 +1,7 @@
 /** @typedef {import("../../types").Extension} Extension */
 /** @typedef {import("../../types").EventsFunction} EventsFunction */
 /** @typedef {import("../../types").EventsBasedBehaviors} EventsBasedBehaviors */
+/** @typedef {import("../../types").EventsBasedObjects} EventsBasedObjects */
 /** @typedef {import("../../types").Parameter} Parameter */
 
 /**
@@ -17,6 +18,8 @@ const NECESSARY_FIELDS = {
   ACTION_WITH_OPERATOR: ['name', 'getterName'],
   /** @type {Partial<keyof EventsBasedBehaviors>[]} */
   BEHAVIOR: ['name', 'fullName', 'description'],
+  /** @type {Partial<keyof EventsBasedObjects>[]} */
+  OBJECT: ['name', 'fullName', 'description'],
   /** @type {Partial<keyof Parameter>[]} */
   PARAMETER: ['description', 'name', 'type'],
 };
@@ -88,6 +91,16 @@ async function validate({ extension, publicEventsFunctions, onError }) {
       `the behavior '${behavior.name}'`,
       onError
     );
+  if (extension.eventsBasedObjects) {
+    for (const object of extension.eventsBasedObjects) {
+      checkForFilledOutString(
+        object,
+        NECESSARY_FIELDS.OBJECT,
+        `the object '${object.name}'`,
+        onError
+      );
+    }
+  }
 }
 
 /** @type {import("./rule").RuleModule} */
diff --git a/scripts/types.d.ts b/scripts/types.d.ts
index f943cb2c2..5889700e0 100644
--- a/scripts/types.d.ts
+++ b/scripts/types.d.ts
@@ -98,12 +98,21 @@ export interface EventsBasedBehaviors {
   eventsFunctions: EventsFunction[];
 }
 
+export interface EventsBasedObjects {
+  description: string;
+  fullName: string;
+  name: string;
+  defaultName: string;
+  eventsFunctions: EventsFunction[];
+}
+
 export interface Extension
   extends ExtensionAndShortHeaderFields,
     ExtensionAndHeaderFields {
   tags: string | string[];
   eventsFunctions: EventsFunction[];
   eventsBasedBehaviors: EventsBasedBehaviors[];
+  eventsBasedObjects?: EventsBasedObjects[];
 }
 
 export interface ExtensionWithProperFileInfo {