Varying curve list reordering for lofting

Hi, I am trying to loft between two different cross sections.

I have a problem combining the lists

0{0,1,2,3,4,5…}
1{0,1,2,3,4,5…}

into
0{(0,0),(1,0),(1,0),1,1)…}

that probably is not that clear ideally I’m looking to sequence the index (indices)

0{0,0,1,1,2,2,3,3…}

In order to loft between the different cross sections.

Help appreciated

Many thanks

Varying cross section_Curves_Rev A.dyn (21.7 KB)

This could work. Notice I switched your list index around.

Thanks @jostein_olsen , I had the same node layout, but could not get the solid to generate and was getting quite frustrated

I just never thought about rearranging the list order tricky…

Kenyon