There doesn’t seem to be a way to place system objects when the staff they are attached to is removed. The objects just disappear. Is there any kind of work-a-around?
There’s no satisfactory workaround, no. If you end up hiding the last staff in the bracket or brace that corresponds to that family, there’s nowhere for the system-attached item to go. You will probably have to resort to faking one up using a staff-attached item, e.g. a text item.
Thanks, I was afraid of that. Perhaps you could add that feature to the ever-growing list of requests? I think it would be nice to have.