Select from a Multi-dimension List with a Multi-dimension Parameters List

Dear hoppers,

There are 3 point-grids in the Point component.

I shifted them with the PathShift component to get them indexed from 0 to 24

Now, I created a simple selection pattern in a Data component to make 4 polylines (with a different number of vertices - total: 14points)

I would like the Selection component to give me back 3 x 4 groups for making the polylines. Or 3 x 14 points.

The Selection ran only 14 times, just for the first point-grid.

This is where I am so far.. 

I tried a graft on the List-input of the selection to tell the selection to do the run 3 times with an unexpected result.. Something is missing..

Suggestions anyone?

Best regards,

Bart