Add an option to the "Duct: Edit Multiple" dialog that allows users to choose whether to preserve duct endpoint connections or not.
So if I query and individual duct section and change the elevation of either end, the ducts the ends are connected to also change elevation to preserve the connection between the endpoints. If I "edit multiple" on several duct sections and change the endpoint elevations, the other duct sections connected at those points do not change elevation to preserve the connection. Sometimes, changing the elevation of one endpoint without keeping any other endpoints attached is what I want, and sometimes I wish the connections were all preserved. I think there should be a drop-down, a radio button, or something on the Edit Multiple dialog that allows me to select which of these two behaviors I want to use.