In some cases, you may want to change the dropdown options for the Second Object column in the Easy Calendar. By modifying the Easy Calendar Second Object Options Field Set on the Time Tracking Summary object, you can do just that! Navigate to the Easy Calendar Second Object Options Field Set on the Time Tracking Summary object in the Object Manager. From there, add or remove fields from the Field Set based on what you want users to be able to select.
Only Lookup Relationship fields in the Field Set will show up as options in the Second Object dropdown.