Ceiling Lines?

[ChiefChris]

I'm not following you Allen.

The line is un-selectable...but the layer isn't locked. The line represents a plane of intersection that is defined by the established ceiling height and roof planes therefor not modifiable manually thus not being able to select it. It's not 'locked' as other layer items would be....

The reason it was hard for me to find was that I needed to think differenltly. I considered that to be a ceiling indicator - but Chief sees that line as a wall beam (to receive the ceiling framing)...that's where I got stuck