Proper way to escalate request to level 2 in service desk plus?

Proper way to escalate request to level 2 in service desk plus?

What would be the best practice to escalate a request to level 2 in service desk plus? Should I use the Level and tier functions and setup business rules or should I create a new support group altogether because level 2 will be a group of people and I wouldn't want to assign the level 2 request to someone directly.
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