A: Yes, if they have the capacity for you to do so. You will become an Explorer Scout as part of your transition from the Scout Section and encouraged to become an active member of one of the District Explorer Units. The you can return to your Group in the capacity of a Young Leader.
It should be noted that you can not return immediately to be a Young Leader with the Scout section of your old Group, it is advised a period of 12 months elapse in order to distinguish you in the leader role.