Limiting groups for reassign based on Category/Subcategory

Hello,

I am in the evaluation phase with the product and am working from a local demo copy. I have been able to create rules that determine where certain tickets (based on group/category) are initially assigned on creation. What I would like to know, however, is if there is a way to limit the group/technician options when a technician is reassigning a ticket or ideally have the program suggest the right pool/technician for escalation.

For example, an e-mail request comes in from a user about intermittent network issues. The rules have the ticket assigned to the Help Desk by default. The help desk does initial troubleshooting then decides to escalate. They change the Category/Sub to something like Network/Connectivity. I'd like the program to automatically select the Network Group for escalation.

Is something like this possible? Is there another way I should be looking at accomplishing the goal of guiding technicians towards assining tickets to the correct groups?

Thank you,

Roy