To Set an Object as Read-Only
Use one of the following methods to set the status of an object as read-only:
Click File > Lock File in an active session of the Creo application.
Right-click the object on the Model Tree and click Lock File to set the status of the object as read-only.
In the Actions list of the Conflicts dialog box, click Make Read-only. The selected object becomes read-only.
Read-only status is a property of the local cache and not the server workspace.