Documentation editor - Text Only

Hello

the "documentation" tab in every items is very useful to describe funcions and extended note.
I usually use "notepad".
I've a problem with "documentation" tab: the editor is "rich" and has a syntax to make format.
This syntax recognize // -- like a format instead I use in tex for separation.

What do you think to add a button "text only" to have a pure notepad without a text format?

My best regards
Paolo