Let's imagine I have a Master data cell symbol and several tables that already use instances of it. There are no dividers in the Master cell symbol so far, so I want to add them. I create a master divider symbol and nest its the instance inside the cell to use as an override.
The problem is that dividers appear in all cell instances I have already used to create the tables. Thus, I have to select each cell instance in the design and manually set divider override to "no symbol".
How to set symbol override to "no symbol", when I first insert it in Master?