This is a great idea, if the group is facilitated by a department educator, staff nurse who frequently precepts, department supervisor or someone similar.
This is probably not designed to be a policy-making group. The purpose here is to facilitate your transition into the unit and the hospital organization.
What arrangements have been made to schedule these discussions? I ask because this can be a major point of difficulty, if not approached correctly.
Suggested topics (and ideally these would include teaching input from others - your educator, manager, pharmacist, physicians, etc.): med protocols frequently seen on your unit; time management; documentation specific to your unit; a field trip to angio/cath lab/OR/etc. to learn about procedures that your patients frequently undergo; discussion on communication with patients and families; and other areas of difficulty suggested by one or more members of the group.
Tell your manager you are excited about this opportunity -- you just need a facilitator. Good luck.