Permission assignment. Four access permissions can be configured for every user and each PC: EXCLUSIVE, SHARE, VIEW ONLY and PRIVATE. The user with the exclusive permission will get all in control.
Exclusive permission: Once the source PC is accessed by exclusive permission, another operator can view the source only, until the previous operator release the exclusive access.
4k video distribution system administrator can create several supervisor account with relative access permission for each source PC, and allow the supervisor to create more operators as a group.
Temporary admin permission: A temporary account can be created for other operator, which will be invalid once the original operator log in.