You can open a model that is being edited by other users. The model will open in read-only mode. This means that you cannot change the graphic properties of the model, that is, you cannot move the objects, connections etc. or change the colors or line weights of objects or connections.
However, you can open Attribute Editing and, for example, change the names of objects.
To ensure that you cannot overlook write protection, a closed padlock () is shown in front of the model name on the tab. When you have opened several models,
this allows you to identify which models you can edit and which of the open models
are read-only.