Moving anchor points in Z axis

Hi I’m a Grasshopper newcomer and looking for a savior…

I’m trying to create vault maker out of a surface which you can create opening with curves.
But my current challenge is that I want to move some points from NakedPts up. I managed to select the points I want to move, but don’t know how to move those points. It feels like I can make use of target points of Anchor, but did not manage to make it work. If you could give me advice on my Grasshopper definition, it will be greatly appreciated! (22.7 KB)

You are close … try this:


You are my life saver. Thank you so much