Group Update

Hi,
I know this has been requested before but having had the same conversation recently I thought I would ask again.
Group update so that if you change the contents of a group you would have the option to apply those changes to all cuelists/scenes that use that group or not (as required)
So for example I have a group of dimmers that are all blinders channels 1>24 in group 100, I add channels 25>27 to group 100 and the fader/list containing that group auto-updates giving me the option to either updates lists/scenes that use that group or not.
I understand it is not a simple as that but would love the ability to use a feature like that.
thanks C