The Ghost Opening Line isn't supposed to turn off the garage door opening linework (which corresponds to the swing of a hinged door). Display Options do that.
It doesn't actually do anything for an overhead door, so I think it was an oversight that the parameter was left in the object.
Take a look at a D1 Entrance door for example, and turn the Ghost Opening Line to "on" (check) ... you now have an angle parameter to show the dashed 'extended opening' area on plan. Note that there is no way to turn the base swing linework off, other than using Display Options. Ditto the garage door.
Karl
One of the forum moderators
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