for me, it doesn't forget up my insert. however, it is annoying when i crouch and i press 0, which opens the overlay.
Im going to add custom keybinds, so you can change them to your liking.
Also, here is the awesome concept art made by Filipe:
An example of the overlay. White squares would be slightly transparent so you can see the background. The transparency would change across the squares over time, giving it a "moving" look. When you hover over the buttons, they would ease out a little, while also increasing in saturation and opacity.
The background color would change, depending on the color of the button you press.