That would be an interesting addition for sure but might make the use of Sync significantly more complicated for users, especially those with lower tech abilities that want something that "just works".. What I am asking for is far simpler, a way to better protect or preserve the integrity of an installation from users with little knowledge or malicious intent.. The scenario where a user inadvertently shares a key thinking it's the right thing to do is probably more relevant than malicious intent and since there is no ability to "remote wipe" a copy it makes sense to protect system end users from mistakenly or intentionally distributing the keys by setting an admin password to access the configuration..