How to raise all chord symbols in a line or system by a defined amount?

Sometimes I have to raise a chord symbol up a bit to prevent it from overlapping a note. When I do this, just to keep things neat, I prefer to raise all the chord symbols on that line similarly. In past, I just 'wing it', moving each symbol with my mouse and judging by eye how far to raise it.

Is there a way to move all the symbols on a line up by a defined number of pixels (above the default value)?

Thanks for your help,

Bob