Hello Petro.

Thank you for reaching out to us.

The customers won't have the option to choose whether the appointment will be handled in-person or via Zoom, but you can configure the "Appointment Approved" and/or "Appointment Pending" email notifications, so they can respond to what they'd prefer.

Also, you can include a custom field that would be mandatory, so when a customer books an appointment, they can choose whether they'd like an in-person appointment or a Zoom appointment. The employees would need to check this custom field before they start the appointment, and you would need to (again) include the info in the email. For example:

"Dear customer...

If you chose to conduct this appointment via Zoom, please access this link when the time comes: %zoom_join_url%

And if you chose to conduct it in-person, we'll see you on %appointment_start_date_time%"

I hope that helps.