Sweep1 "roadlike" inside grasshopper

Hello, is there a way to sweep “roadlike” inside grasshopper? Unfortunately sweep1 inside grashopper only works as with the option “freeform”. Or maybe there is another function in grashopper to do that?
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Did you see this recent post?

Or the one above it in the same thread, also from me, suggesting Swp2 instead of Swp1?

As always:

3. Attach minimal versions of all the relevant files