It's not there, yet. Hopefully things like this will be added in future firmware updates, like battery warning level, RTH options, focus peaking, 2.7K video, etc. etc. It all feels a little short in there at the moment.
I have the flyless so i'm using phone only.
Use two fingers and swipe up/down (this switches into the gimbal pitch mode). if you tap on the screen, a square box appears. 2 finger swipe up/down exits this mode and restores your virtual control sticks.