I think you may have already solved it,
looks like you were almost there.
I added a new copy of BezierValue(bin) to the Rows shelf,
then right-clicked and selected "Show Missing Values",
and that seemed to get the curves started.
Once done, I removed that copy from the Rows shelf,
the other copies remaining untouched on the Path
and Detail shelves. Sheet3 of the attached is the result.
Procurement Cycle 2b.twbx 179.3 KB
Thank you! That was very useful, I appreciate your help.