Multiple Google Calendars with one Google Cal ID
I have a Google Calendar account that has multiple calendars that are
shared with other accounts, which they can edit and put events into each
one of those calendars, and a main calendar. With this main calendar, I
would like to be able to use it's Google Cal ID to link others to this
calendar and have them see all the events from the other shared calendars
overlayed. Is there any way I can do this?