I can't figure it out. Is that even possible?


There's a discrepancy between the docs and the parameters as well:


Has anyone else had any luck with this?

I'm not sure it is there a way to make it work without any edits but the null node uses the control node inside and the control documentation states "Custom: If an input source is specified, this option will display the geometry of the input."
So what you can do is add an object merge inside and connect it to the control node .
control [www.sidefx.com]

Thank you MatijaK, this helps a lot! Time to make some cool looking nulls.