Question Pass custom data from vertex shader to fragment shader

I've been looking around the web and the docs to find a way to pass custom data from the vertex shader to the fragment shader in shadergraph (as shown in the attachment), but so far I have been unsuccesful. I could easily use the available extra uv-channels, but they are not exposed.

Does anyone know of a way to achieve this?

I would for example like to do some calculations on the vertex-positions in the vertex shader and know which vertices were affected within the fragment shader.

Thanks for your help in advance!

 

Welcome to club! ^_^

 

If anybody is still wondering how to do that... this should help:
https://docs.unity3d.com/Packages/com.unity.shadergraph@12.0/manual/Custom-Interpolators.html