After testing instamat for a while i found some minor issues and got suggestions to improve instamat.
Cannot see bounds when in channel preview mode
Mesh mask builder has some opacity sliders -1 to 1. Even when u open override window it says 0 - 1 you should rewrite 0 to take effect.
Mesh mask paint renames to mesh painting when undo
I think an eye icon would be better for enabling / disabling layers. Often times i press it to delete layer. And a trash icon for remove layer button.
Preview Output setting when double clicking doesnt always respect to it.
And lastly focus should frame the object without changing camera rotations like in other dccs. Current behavior should be called like reset/home camera etc. i think we should have both.