This could be useful for plumbing and mechanical items as well, but specifically for electrical having the ability to have a list of equipment to select from, and then place information from that equipment elsewhere in the project. This would effectively work how View References work (I love them), but for equipment. We could then customize the reference family to include whatever specific electrical information we'd desire, depending on where we're using the reference.
Until we get a proper riser/one-line option, we could at least use this to draw "dumb" boxes for one-lines with information directly from the equipment we are placing in the project. Want to change a panel from 200A to 400A later? Not only will your panel schedule change, but your one-line will correct also.
Right now, the only way I've come even close to having a proper riser/one-line built within Revit is by creating sections and cropping the views to only include the equipment, and using a custom tag to display the desired electrical specifications. This becomes problematic both in setup time, as well as if the equipment ever relocates. Something has to be done to make use of all the electrical information we give our equipment within the program.
