The layout for Persian keyboard is a little old right now, so we (OR better to say I) have a problem with using some characters in Persian layout. For example, putting hashtags(#) in Persian keyboard layout which is used by Linux requires Shift+Alt+3 although in windows and also English layout is Shift+3, and Shift+3 in Persian layout is some character that I have not seen anyone using it anywhere!

Here is the default layout:

So I'm really interested to find some way to edit this or download and use the default layout used in Windows. Note that there are some other problems with this layout which Windows fixed them before.

P.S.: I found something here : Keyboard layout problem during changing persian keyboard
But I don't know how to change the settings I need without breaking things.