diff --git a/CHANGELOG.md b/CHANGELOG.md
index b6f463c..92a146f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,6 @@
 ## Unreleased
 
+* [Make `IActionParamForRun.closeContextMenu` optional](https://github.com/flower-platform/react-timeline-10000/pull/104)
 * [Add `nowMarkerLiveUpdate` property that live updates the now marker](https://github.com/flower-platform/react-timeline-10000/pull/108)
 * [Fix scrollbars that hide content on gantt/table](https://github.com/flower-platform/react-timeline-10000/pull/103)
 * [Drag to create can start on top of an existing item](https://github.com/flower-platform/react-timeline-10000/pull/101)
diff --git a/src/components/ContextMenu/ContextMenu.tsx b/src/components/ContextMenu/ContextMenu.tsx
index 63a9f59..611a065 100644
--- a/src/components/ContextMenu/ContextMenu.tsx
+++ b/src/components/ContextMenu/ContextMenu.tsx
@@ -1,22 +1,14 @@
 import React from 'react';
-import { Menu, Popup, StrictPopupProps } from 'semantic-ui-react';
+import { Menu, Popup } from 'semantic-ui-react';
 import { IAction, IActionParamForRun } from './IAction';
 import { TestsAreDemoCheat, createTestids } from '@famiprog-foundation/tests-are-demo';
 import _ from 'lodash';
 
 export type Point = { x: number, y: number };
-
-type Position = StrictPopupProps["position"];
-
-type IParamsForAction = {
-  selection: any[];
-  position?: Position;
-  [key: string]: any;
-}
 interface ContextMenuProps {
   actions: IAction[];
 
-  paramsForAction: IParamsForAction;
+  paramsForAction: IActionParamForRun;
   /**
    * if undefined => the menu is closed else {x, y} position where the menu should open
    */
diff --git a/src/components/ContextMenu/IAction.ts b/src/components/ContextMenu/IAction.ts
index 07b5d69..8b7638a 100644
--- a/src/components/ContextMenu/IAction.ts
+++ b/src/components/ContextMenu/IAction.ts
@@ -1,17 +1,24 @@
 import React from "react"
-import { IconProps, SemanticShorthandItem } from "semantic-ui-react"
+import { IconProps, SemanticShorthandItem, StrictPopupProps } from "semantic-ui-react"
 import { Point } from "./ContextMenu"
 
 // TODO RM34271 let's get rid of IActionParamForRun. It overcomplicates the inheritance. We'll have here closeContextMenu() that won't do anything.
 // export interface IActionParam<S> {
 // selection: S[]
+type Position = StrictPopupProps["position"];
+
 export interface IActionParam {
     selection: any[]
 }
 
 export interface IActionParamForRun extends IActionParam {
-    closeContextMenu: () => void,
-    
+    /**
+     * Function to close the context menu.
+     * This is marked as optional because users will pass their actionParamForRun without this field.
+     * However, it will ALWAYS be populated internally by the ContextMenu component before being passed to action handlers.
+     */
+    closeContextMenu?: () => void,
+
     /**
      * By default the context menu closes immediately after the action is run
      * If the user wants to avoid the closing of the menu after action runs he needs to set this property to true
@@ -23,6 +30,10 @@ export interface IActionParamForRun extends IActionParam {
      * It contains the mouse coordinates, obtained from onClick event of an action
      */
     eventPoint?: Point
+    
+    position?: Position;
+    
+    [key: string]: any;
 }
 
 // TODO RM34271 CS: for the moment it's not clear why we need this. It's not used by the lib. And currently, the task of opening