Is it possible to have 2 different types of ticket id's? We support 2 different brands with the same helpdesk (with different e-mailaddresses of course) and we would like to seperate these ticket id's completely.

I have read that it is not possible to have custom ticket id's like p101 and e101.

Is it possible to have to lines of ticket id's based on the support e-mail/deparment it came in from? So let's say every tickets made in department A will count from #000001 and all tickets made in department B will count from #500001?