About Locking Elements
Before you edit an element, you must lock it. Locking ensures that you are the only person working on a particular element at a time, preventing the loss of changes. Elements can only be locked by one user at a time. If the element you need is already locked, request that the current owner of the lock release it. If the element is system locked, request that the server administrator release it by making the corresponding server files writable.
Elements are locked by webMethods user name (the name you use to log on to the Integration Server). Because of this, it is important that you use a distinct user name to log on to the server. If you change user names, you will be unable to edit or unlock items that you locked using your old user name.