A quick couple of questions:
My current .nod assembly requires input of many lines. Each line is to be converted to many pointarray points.
The points in each cluster of points are to be manipulated, and the new cluster of points is to be turned into a curve, mode interpcurve.
The problem is that interpcurve chains all of the point clusters together, but the desired result is that each cluster should be a separate curve.
Is there any separator or clustering mechanism in pointarray?

indexSelect node could grab a cluster, but each successive cluster still needs to be processed separately.

I thought that each line could be turned into a straight polyline. The polyline would be considered to be a cluster of points.
Points in the polyline would be manipulated and converted into a new polyline object.
Turning the new polyline into an interpcurve would require a new version of Curve node, with a polyline object input.
Each polyline object input would have to be converted to a separate interpcurve.

The other question is whether concat and concat2 are the same.
BatchPts and concatPts seem to do the same thing?
EDIT, 3/12/2022, thats bundlePts. (bundlePts was superceded by bundleArray in Points mode.)

- Brian