Not really. It doesn't really work that way.
For trunked systems, the scanner scans (active) Control Channels (Frequencies) It acts on the information it receives over the active control channel(s).
Read about
How Trunking Works
For Conventional Systems, you won't be able to dictate what order it scans the Conventional frequencies that I know of.
By programming a bunch of Priorities, the scanner will constantly be checking those frequencies for activity. (A mess to listen to)
Priority on a Trunked System is even more complicated.
Read here:
New SDS100 User. I am having trouble understanding if/how to set priority scanning for a P25 trunked system. I set priority on the channel (talkgroup) i want to prioritize and set "priority ID scan" for the system but I see no indication of priority (PRI) like I see with conventional priority...
forums.radioreference.com
Enjoy your scanner!