In order to make the UI's commandbar perfectly moddable, these commands could be beneficial.

It is already possible to track the userinput for changing pages, although it's a bit tedious and needs some extra checks.

In any case it is not possible to set the page so that it jumps to, for example units 11-20 l, like it does when the player hits the F12-key.

This may be a very niche request, but I do think it could help.