Back/Menu button without nav bar

Hello everyone

First of all, thank you for this framework, it’s working very well, and i really enjoy working with it
However their is one thing i’ve been trying to do for the past 2 days.

I’m trying to get a Back/Menu button but without a nav bar.
It would look like a modal but in which you can go back. (i cannot use modals)

This may be ultra simple to do, but i’m new to this framework and to mobile development so sorry if that question is a bit too simple.

Thanks !