@grace could you write up the names of the points you used in the first rotation? I am sure I can figure it out from there. I have been gone on a cruise so not thought about this in 2 weeks, but I was having difficulty selecting anything other than a single line or single point and seeing how the automatically generated extra point can be used to draw the rotated section. (I am assuming that the example here is a progression of -10 degree rotations). the use of different color lines is also helpful.
thank you very much for your help