I tried to use the $N variable in the Group Create node (in Base Group section) to put the last point of a curve into a group but it seems to be ignored. Am I doing something wrong?

$N is a local variable of the old, 15.5 and earlier, Group SOP. The new Group Create does not have local variables, so doesn't have $N.

The easiest way to select the last point is to use a Group By Range. It defaults to “Relative to Start and End”, so set the Start/End to 0 and 1. This will then group all but the last point.

In recent 16 builds there is a “Invert Range” option you can then hit to select just the last point. If you don't have this option yet, you can use a Group Combine afterwards to invert the group.

Alternatively, if you want $N itself, for point groups it is the same as


(Note the use of backticks to enter expression mode) For primitive groups, use nprims instead.

Great response. Works flawlessly. Thank you.