BPDU block on edge and mac-limit
it would be a great addition making it possible to block/shutdown edge switchports if a spanning-tree BPDU is seen or number of mac addresses raises over a certain level.
The background for this request is to limit users from installing third party switches which can break your topology.
Bonus would be to do spanning-tree root guard as well.
Overall that would raise the enterprise capability of the products quite significantly.