Lock/Unlock a REST Connection
In order to lock/unlock a REST Connection, click on the name of that REST Connection and then click on Lock/Unlock as needed. If a REST Connection is locked, no other user can modify it unless that user is the owner of it. However, if a REST connection is unlocked, any user can modify it. Only the owner of the REST Connection can lock/unlock it.
Alternatively, you can click on the checkbox next to the REST Connection name and click Lock/Unlock as below: