So, yea, i'm using the latest version of the tool and what i've noticed is that if I open any of my previous scenes with older rigs their selectors have all the tabs present BUT tabs contain no controllers, they are empty.
I have put a fix in for the bug with the hidden buttons in rrm3_installers_BETA_2023_11_15. You will first need to "Show All Buttons" when in edit mode, and then the next time you save, it should work as expected.
You can do that already. In the tab you want to delete, switch to edit mode, then use the "Delete Current Tab" option. Note that this only works in user-generated tabs. You cannot delete the Main Tab.
I have put a fix in for the bug with the hidden buttons in rrm3_installers_BETA_2023_11_15. You will first need to "Show All Buttons" when in edit mode, and then the next time you save, it should work as expected.
p.s. please could you add option to delete tabs that we created ( in case there was a mistake with one of them or something ). could be useful.