I've been out of Blender for over a year and trying to catch up on it again. I have created some bent tubes by following a Nurbs Curve path with a circle and then solidifying it. After doing other work I see the size of the ends on some tubes need adjusting to fit with other geometry. If I select the edge loop on the end of a tube and try scaling it the scaling takes place based on the Origin Point of the tube not at the Edge Loop. I have tried setting the Cursor to the center of Edge Loop and then moving the Origin Point of the tube using Ctrl+Shift+Alt+C. If done in Object Mode this seems to work until I shift into Edit Mode. Then scaling takes place based on the original location of the Origin Point not the new location. Trying to move the Origin Point in Edit Mode using this method just produces an error message. How can I scale this Edge Loop?