1) I couldn't simply lift these curves up, so I did a loft between the two profiles, but now I have an extra control curve in there I don't want. So Option1) How do I simply lift the curve up?, or Option2) How do I remove the extra control curve?

Model file (3dm):
http://www.dukecg.net/KMTower_11.3dm



2) Like the above, I lost a chunk of this in a boolean and patched it up with a loft but am now left with a control curve I don't want. Can I remove it? I want to remove it so I can do some sweeps in there to complete the shape!



3) I want to lift this corner up a little - how do I do that? Do I need to do a boolean? Why can't I just you know, lift it?