I need help...

Great! As for understanding “press” and “push” the same thing, you don’t need to do so (not in I7 version 6G60, at any rate), because it’s already understood as the same thing. It’s just that there’s no “pressing” action – the command “press” simply redirects to the “pushing” action.

Yep. According to the I7 Manual, it’s “Use undo prevention.”

do i put it as part of a command? or just anywhere?

It won’t work as part of a command.
Just put it in your source.

(I’d put all use options right after any extension inclusions, but I don’t think it really matters.)

thank you it worked!

How do i make it so if i press the green button it makes me able to go north?

I’d say that depends on why the player can’t go north before he/she presses the button.(Is there no exit? is there a locked door? is there a giant crab barring the way on? etc.)