On the taskbar, Groupy allows the user to replace individual application windows with its groups. (This setting is: Settings > Visuals > More settings > Only show a taskbar button for the active window in a group.)

This is convenient because it makes it easier to find the right application window.  However, the windows shown in the taskbar are named after the currently active window in the group, and sometimes the name of a window isn't something immediately recognizable as what the user is seeking.

It would be good to be able to rename the taskbar buttons, similar to how this tool works:
https://kwaschny.net/projects/taskbar-renamer
but all done inside Groupy.

This way, the groups and windows would be very easy to find, since the user named them.