JassNewGen text editing options

So, I've used the JassNewGenPack for a while now, however for somehow I switched out of insert mode (pertaining to JASS text).

How do I switch the mode back to insert?

I can't find it in any of the normal option menus.

Perhaps you need to press the 'insert' key in your keyboard?

Lol, wow, thx. But I have no idea how I hit that key...