How to get cylinder instead of point when I try to rotate CAD model.

I try to rotate the CAD coordinate system.  Need some help:

I picked up the original at where it is, now I would like to have Y axis down the cylinder. How to pick up point 1 and point 2?   Thank you  

I have honestly never had any luck with that. One of the reasons I do it all in CAD software. I have used the rotate to line before and it worked.

If you don't have the CAD software option then a good standby would be to use some features to dial it in with axis angle rotations, I have used this method many times. 
Before any alignments create an auto cylinder, or two circles to get an axis line between them, dimension that angle from is closest respective axis and then rotate your axis by that amount. Delete the features and rinse and repeat until you get where you are going. Its cumbersome but really only takes a few rotations to get things squared up. 

Thank you. That is what I did before.  I was told months ago here, we could use 2 points to make it easy. :)

I'm sure Neil can point us in the right direction. The Demon rarely makes things easy...  

I'm sure Neil can point us in the right direction. The Demon rarely makes things easy...