It would be nice to be able to move the GUI buttons so it's not in the way of other buttons from other mods.
I use mods like Diet & Inventory Profiles Next, and thankfully they can be moved, with Diet having a config option to both remove & move the button, while Inventory Profiles Next has a button that moves most of the little buttons around.
There are some things that can't be moved, especially in certain screens, so the Magnetic Ring button keeps getting in the way or just doesn't look good in the spot it's in.
I haven't been lucky enough to find any of the other stuff that adds a GUI button, but if it's in the same spot, or in the spot where I moved the Diet button, then I will definitely be needing a way to move the buttons around, maybe even shrinking them so they can fit better together.