It would be very helpful to have custom ticket Types. This would allow for creating different kinds of tickets and, importantly, applying different ticket automation rules.

Example... "normal" type tickets (problem, incident, etc) can generate emails sent to customers. But a custom Type (Sales) can be configured to NOT generate a notification email, and auto-set Status to a fitting custom status (Sales - Requested, Sales - Ordered, etc).

Currently, I am doing the same thing by using custom Product Family options, but those fields are not available in the mobile app, which we do use regularly.