It would be very helpful if you there was a system in design master to automatically draft/populate a One-Line/Riser/other Diagram in model space based on what panels, switchboards, transformers, wireways etc. have been defined in the database itself.

The most preferred way to do this is if Design Master would create the Diagram based on templates, or a customized template that we could edit ourselves which would instruct Design Master how to draft the diagram (where to place devices in relation to eachother, size of panels/busses, what information about those devices you want displayed, whether you want wire callouts visible and other such options.)