When setting up a SmartList, it's currently possible to add a 'Next Task' field and filter using this. 

It would be ace to have the option to add a 'Next Appointment' field and filter by this! Please add this function — as it's already available for Tasks, it seems strange to not have it for Appointments.

In general, it feels like the Appointments function on Zendesk has not had much attention or development. I see other posts asking for the ability to set tasks for another agent/owner, which would also definitely be useful. 

Again, similarly to Tasks, it would be useful to be able to select a user and view their Zendesk calendar *without* needing to sync an external calendar and subscribe to their calendar elsewhere (i.e. Gmail) first. We manage most work-related things directly with our Zendesk calendar and the appointments associated to our Deals, so it would be great to have more functionality without having unnecessary integrations.