It used to be possible to swipe left and right in compare mode to move the vertical line linked to the printed time.
For me this feature stoped working when the new code, that runs both on iPhone and Android was released.
I realy miss this feature and would be verry happy if it could be restored/recreated/fixed.
Yes, it is possible to single tap to set the position of the line, but by trying to move it twice in short time a dubble tap is triggerd and compare mode is accidentally closed.