Can't delete an object? x8 on a mac

[dkmtek]

Hi all. I'm having trouble trying to delete or adjust an object? (Hole in a roof plan). I'm trying to create dormers with curved roofs (Barrels). I've gone through the videos on doing this and have a fair idea on different ways it can be done, I've created a hole in the roof plane by creating a "Polyline" and converting it to an object (Hole in roof), but now I can't adjust or delete it? I've been successful on here with two other "Dormer roofs" (Auto Floating Roof Dormers), but this one I did by creating 2nd floor walls and cutting a hole in the roof (Seems to have more control on making a dormer?).  More detail: The roof is based on the first floor walls but the dormers are on the second. I can highlight the roof on the first floor plan view but when I highlight it and try to delete it, it shows up again on the 3D views? 

[rgardner]

1.) check to make sure the roof holes layer is turned on. 

2.) check for the correct level that it is on (i.e. if you put it on level 1 where the roof plane is then it will be there.)