Lock Related Elements when Opening Diagram in Read-only Mode​.

By default when a drawing is opened in read-only the attributes of the schematic database elements, corresponding to the components present in the drawing, can be modified. To change this setting, go to Diagrams Options > Lock related element when opening Diagram in read-only mode.

When this setting is set to True, the associated dabacon elements will be locked and cannot be modified when a diagram is opened in read-only mode. Once the read-only diagram is closed the lock will be removed. Also, when this setting is set to True and a diagram is opened in read-only mode, a Save work is performed, and while closing the read-only drawing window ensures the lock is performed.

The default value of this setting is False.