Provide a default voltage for the panels in a project.
Add a check box to set the voltage for a building. If a building is 120/240, then checking a box will set the default for panels, equipment, etc to 120/240v instead of 120/2083p4w.
If you do a default, how about letting us change the default so that DM will go back and replace all those voltages with the new voltage and not uncircuit everything.
I support this idea with the possibility of having two voltages to default to. One would be the default, the other would be an easy access. Example many buildings are default at 480/277 4w, with low voltage systems of 208/120 4w. This would eliminate scrolling through all of the unused options everytime you set up a one line device.