I run SD on a Samsung Galaxy S8. The displayed map scale varies depending on the phase of flight (take-off, en-route or landing).
I‌ can also change the scale by "pinching" the map display.
I‌ notice that the map scale is displayed temporarily while "pinching", which is a good feature, although can be difficult to view due to my hand being in the way!
H‌owever the map "scale" display function seemed to stop working after changing scale a few times and I had to guess what was the 1:500,000 scale.

I‌s there any way to implement a single (or two) "touch"‌ of something on the screen to get the map scale back to my default setting?
T‌ony