Unable to customize Waystone Sub-Tabs

I can change the Main Tab title, however the sub tabs cannot be changed in any way. This applies to personal stash and guild stash.

I believe this to be a bug as the introduction video shows the sub tabs being able to be edited with color or text.

Edit: a reinstall has given me the option to color and title the sub-tabs with the square button. The order of the sub tabs does not seem changeable.