Steffen,
I have thought of the grouping, but if you want to toggle notes/descriptions
on and off that requires layering. You can't group things on different
layers...can you?
My solution is to keep notes that are not for public consumption on a layer
separate from the diagram entities. I do have to remember to delete the
notes when I delete the entity as Carl mentioned, and they don't move around
the diagram, if I move the entity.
For my purposes notations on a drawn entity or group has taken the form of
purchasing notes on electrical components. Or design explanations. In a
functional block diagram the notes give me a deeper level of detail that is
turned on occasionally. I suppose I would really like to make "visibility
toggle-able notes" as an attribute of a group more often than of a singular
entity or shape. Perhaps that would even be easier to implement...Add the
notation attribute to the group, not the shape. Then if you need to
annotate a shape you group it first. This would not require any retro
tweaking of shapes.
I second Carl, I would like an attribute for notes. Notes that can be moved
around the entity and be toggled visibly on/off. This would be very handy.
But yes, there are workarounds. I would make the addition myself if I knew
how.