How do I select/unselect calendars to show in the app?

1.Select the calendar icon.

2.Select the  icon.

3. Select the “Filter” icon.  You will find the Filter icon next to the "All calendars"

A list of your AppClose calendars and any synced phone calendars can be found here. 

You can enable any calendar you want displayed in the app and/or disable any calendar you do not want displayed in the app by turning these buttons on or off.