Give the ability on the sub-account manager level to see which snapshots have been installed and with a click, remove all assets connected to that snapshot.
This would allow for easier account cleanup one accounts become cluttered. Additionally, it would protect agencies from intellectual property/asset leakage when accounts want to sub-account transfer to another agency.
An additional connected feature would be the ability to see in the snapshot manager, which sub accounts have that snapshot, and remove from there as well.