Have Google write to another calendar

We are just getting started in using Events and the first thing I saw was that I can only integrate a single calendar from our existing Google. That won’t do us much good since we already have multiple calendars spread across the district. My work around that came to mind was to create a new master calendar, and then see if I could get the Events created in IIQ to write back to that Google Calendar, then write themselves to the already existing multiple different calendars based on the Building/Location/Room. Has anyone tried to accomplish this? Searching Google Admin options didn’t seem to be very promising.