Bug [SOLVED][Linux] Unable to add a new menu item into Unity3D editor toolbar

I'm using Debian 8 and installed Unity3D Build #2016022301.

I'm not getting to add a new menu item into editor toolbar.

I followed the instructions given by:

Unity - Scripting API: MenuItem (version 5.3)
http://docs.unity3d.com/ScriptReference/MenuItem.html

UNITY EDITOR EXTENSIONS – MENU ITEMS
https://unity3d.com/learn/tutorials/modules/intermediate/editor/menu-items

I created a file named MenuTest.cs and inserted the code example from Unity - Scripting API: MenuItem.

Then I tried to put MenuTest.cs into /opt/Unity/Editor, /opt/Unity/Editor/Scripts, Editor folder inside the current project and Assets/Scripts folder. Reinitialize Unity editor.

But no new menu item were inserted into toolbar.

 

Put the script into your project folder + /Assets/Editor instead.

Edit: The quickest way to do that is to right click in the project browser (in Unity) and create a folder called "Editor", then put your script in there.

 

OK, it works when putting the script into project/Assets/Editor.

Thanks