P: Move undo button in Lightroom for iOS to the bottom interface

Suggestion from Lightroom fan here. The majority of the editing tools appear the bottom of the interface for Lightroom iOS, but the undo button appears at the top of the screen which feels very clunky when quickly making edits and undoing them. It would feel more intuitive to have the undo button at the bottom near the rest of the editing tools. 

many thanks

carls