AutoCAD Civil 3D :: Add Floating Curves From The End Of Simple Straight Alignment

Ok I am attempting to add a floating curve from the end of a simple straight alignment. No matter what I do the curve is created from the left end of the alignment. I first created an alignment from objects. I tried reversing the alignment and it still comes from the same point. I tried creating an alignment and drawing the objects using a fixed line. Still from the same point. How do you get it to create the floating curve from the opposite end?