Loft between curves and different heights

Hi Guys,

How can I get a loft between curves but they are in different heights… like a pattern.

Many Thanks!!

[Loft Loft between (10.3 KB)

You were almost there.
Loft between (13.7 KB)

That’s great Adam but my goal is to get one peak in z=5, next peak z=0, next peak z=3, next peak z=0, next peak z=2 and another peak z=0… for example and then reapet the sequence

Like this?
Loft between (11.4 KB)

Great Adam! This is what I wanted to get!

Thanks a lot!