The possibility to use a shared Ical URL is very useful if you want to show events from personal calendars. It gives you a lot of possibilities to share events on your LoopSign screens.
Log into your google calendar
Select “Options” for the calendar you want to share
Select “Settings and Shareing”
Set your calendar “Public”
Get the Ical link and use it it LoopSign
Note: You can do the same with resource calendars as well.