One suggestion in list is
F153
Use assistant color as the highlight for the editor widget?
If you have many assistant like you have, the idea is to define colors to assistants (already possible) and then use this color for highlight of widget.
Maybe it should also be visible not only when highlighted, but always… ?
It doesn’t replace the ability to hide/unhide but as you saw in planned change, there’s a long list of change and also, there’s another topic that might match your need better:
Grum999