Appointments+ hide services from dropdown and autoselect provider based on service


I have to revamp the way that the plugin is used and I have a couple of questions.

1.If I dont use a worker ID in a calendar, then the calendar displays for all workers and services,correct?

2.If I do so, and have services that I want to affect the calendar, but do not want them to show in the services dropdown, is there a way I can hide them from just the dropdown?

If I do not include the service provider code and have the services set to autorefresh, will the system select the available service provider that is linked to that service?