The Lock One-Line command in the Main Window is designed to prevent the user from modifying the graphical one-line diagram and from deleting or adding network elements. Subsequent executions of this command toggle the locked and unlocked status.
Even when the one-line is locked, the user can still:
•modify parameters of network elements
•take network elements in/out of service
•add relay groups
•add protective devices and logic schemes to relay groups
•modify parameters of protective devices and logic schemes.
•delete protective devices and logic schemes
•delete relay groups
The lock/unlock option is saved within the olr file.
TO LOCK THE ONE-LINE GRAPHICS:
1. Select the Diagram | Lock One-Line command.
When locked, the words “1-Line locked” will appear in the status area near the bottom of the Main Window. In addition, a checkmark will appear next to the Lock One-Line menu item.
TO UNLOCK THE ONE-LINE GRAPHICS:
1. Select the Diagram | Lock One-Line command again.
Main Window