Okay, I understand better how to use it. I think with dozens of notes to exclude it might be tricky in the long run. But I'll give it a try.
Yes you are right, it is not directly related. With the multiplication of plugins we start to have a large number of panels. I just find it interesting to group features in the same panel. It's easier to make visible/non-visible. And then I read that you plan to allow to see internal links to the current note... what a table of contents is. But I understand that you imagine another use.
Yes, it would be enough to play on the appearance.