Text Filter Options
- In any field in an event (anything you can "see" in the calendar or when you click on an event);
- In the event's calendar name (source), so include a whole calendar by including its name;
- In any custom fields.
Operators: AND & OR
You can also use AND and OR operators in your filters. When filters are chained together, the calendar will infer parentheses like this:
Field and Source/Calendar Names
Status: -* ...would show all items where the status is blank, i.e. "not (-) any value (*)"