I'd appreciate the option of hiding the standard pokemon UI that normally appears on the left of the screen without any menus open. The Hide UI button only seems to hide the names, but the bar is still there, which seems almost pointless to me.
Instead, I'd offer the idea of having a option to hide the UI and show it in the inventory instead. Simply hit a quick button to see which pokemon you currently have and their status'.
I'm sure this wouldn't be that hard to implement, at all. Maybe a few new lines of code for the actual implementation and some extra for the config option.