Converting Point cloud in vertices

Technical Support Geometry Nodes
1

Hi everyone, I’ve been struggling for hours with something I hope is really simple.
I have this Alembic file which Pro Particles saves for me as point clouds, but I need a mesh with simple moving vertices; I wouldn’t even need any colour attributes or anything else, just the 3D position from frame 1050 to 3657. I’m sure I’ve done this before in GN: converting anything into vertices (meaning as if they were single vertices created with Shift+A) and then creating an Alembic file to get not a point cloud like this file, but precisely a mesh with 20 animated vertices.
Many thanks

instance bake.abc (3.0 MB)

2

Very unclear as to what you are trying to do here.

(I downloaded the file and it still makes little sense.)

Maybe give an example picture of what you want.

Hope that helps