Usage Exclusions
If you click the 'usage exclusions' link next to a group you are taken to the Group Usage Exclusions page.
This page enables you to select Usage types from a check box that will not be visible to members of the current group. This means when a user in the current group is downloading an asset, they will not see any usage types in the 'Usage Type' dropdown that have been ticked on this page. Read more about Usage types
Note: that if a user is a member of another group for which the exclusion settings allow the usage type to be seen, then that takes priority and the user will be able to see the usage type.