Is it now possible to use an alphanumeric ticket id in Service Desk Plus cloud?

Is it now possible to use an alphanumeric ticket id in Service Desk Plus cloud?

We are importing ticket data from our old system, which already have numeric references.

Can we use an alphanumeric reference for imported ticket data e.g. X-1, X-2, X-3, etc. alongside auto-assigned references for new tickets created directly in ManageEngine?

If not and we import ticket data using the old numeric references e.g. 52351, will ManageEngine just add 1 to the highest number to generate the next new ticket?