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  • $\begingroup$ Thanks for your help. But how can I select an index? I have now changed Capture Attributes to Spline, but I can't isolate a spline with the shading.... I thought the Math Node with Less Than would select the index under 2. $\endgroup$ Commented Apr 8, 2022 at 7:15
  • $\begingroup$ I see now, it's because capture attribute is not connected to output. Put it before convert to mesh $\endgroup$ Commented Apr 8, 2022 at 7:35
  • $\begingroup$ But when I do that, the mesh around the curve also disappears. It is also not possible to have 2 outputs. $\endgroup$ Commented Apr 8, 2022 at 7:47
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    $\begingroup$ @Andi I have updated the answer. $\endgroup$ Commented Apr 8, 2022 at 9:11
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    $\begingroup$ @Andi spline parameter gives you an index of point restarted from 0 in each spline. Using capture attribute with spline setting will give you 0 every time. $\endgroup$ Commented Apr 8, 2022 at 9:48