Biases for Menu Items
OpenROAD provides the following biases for menu items:
Enabled
Specifies that the user can select the menu item (not available for menu separator)
Disabled
Specifies that the menu item is displayed (dimmed) but the user cannot select it or change it
Invisible
Specifies that the menu item is not displayed
The menu item biases let you make certain menu items available to the user under different conditions.