Locks for models in multi-user mode
To preserve the integrity of the multi-user model, Tekla Structures locks the master model when a user:
Opens the multi-user model
Saves a working model to the master model
When you try to save the model that is locked, Tekla Structures gives you an option to queue for saving until the model is unlocked. Tekla Structures keeps on retrying saving every 15 seconds until the operation is completed or until you cancel the operation.