Grasshopper Triangular Tensile Structure Kangaroo

Hello, I am trying to create a tensile structure from a triangular mesh. I succeeded in creating a triangular, flat tensile structure, but I could not manipulate it with the target point to create a tent shape. Is there a way to enable the control point?
I tried merging corner points with the control point, but it also created a different result than I wanted.
I need you guys help… Thank you!

I forgot to add my files. Sorry

Triangular Tensile Tent (20.8 KB)

do you want some thing like this?