Free or busy

This is super important feature to have. I have automatic silencer app, which follows my calendar by free/busy status, muting only busy. Specifically important for all-day events as otherwise sound is shut-off early morning and chances are that I figure out only later I missed important calls.

I have Google Calendar synced to Calendly. I need to be able to set events to free so it doesn't block appointment times there. This is a blocker for me.

This is super important, especially for all-day events. If I add an all-day reminder it blocks out my whole day unless I can change the free/busy status.