Flags can be used to quickly and effectivley filter the volumes displayed based on their current status.
For example, placing M in the flag filter field will display all volumes currently in a move status.
Placing a !M will show all volumes NOT in a move status.
Flag filters can be used concurrently to filter volumes off multiple flags. For example volumes in a move status, that are Scratch and are not encrypted would use a flag filter of MZ!E.