Vera Alerts to Update Google Calendar

I’m looking to provide a means to update a Google Calendar via Vera Alerts using the “Plug-In Forwarding” option of VA. I want to have Vera update a calendar that is visible anywhere Google is accessible.

I have created a Google Calendar called “Vera Events” and implemented the GCAL3 Plug-In to point to this calendar just in case its needed. These parts work fine. I have the Device ID of the Calendar PlugIn, #1687. But I’m stumped on the “Service” “Action” and “Default Arguments” to be used to add an item to the Google Calendar. (I have the Google Calendar API enabled in the Developer Console) But i haven’t found a concise description of the process to add items to the calendar.

Has anyone tackled this and can provide some guidance?