I don't think so.
You can "register" any channel as the Priority channel (page 24 in the Advance manual). Maybe your only option to assign a different channel as Priority.
That said, the Priority channel should only come into play when using Dual Receive (page 24-25 in the Advance manual). Turn off Dual Receive and I think a scan should ignore the Priority channel.
Another option is to change the Dual Receive ("DW") resume conditions (page 25 in the Advance manual). You can set the resume time to between 2 and 10 seconds or Busy or Hold.