A common configuration in electrical panels is to have multiple-tubs. Frankly Revit's ability to handle this is pretty poor.
There are two ways to show multiple tub panel schedules:
1> One big schedule for all the breakers in all the tubs.
2> Two (or more) separate schedules for each tub showing only the breakers in that tub.
Revit supports #1 pretty well, the only request I would add would be the ability to indicate which breakers go in which panels via a line separating the tubs.
Revit does not support # 2 without major hassles. To make this possible Revit needs to allow a panel to show loads from a sub-panel while not showing the circuits. Revit should be able to subfeed a panel (via the sub feed lugs) rather than using a breaker.
This is especially important for triple tub panels, which at 42x3 poles are getting crazy long and may not fit on some sheets that well.
