Its a simple question, yet google does not yield any results. In the image below, the extrude mesh node outputs a bunch of instances that each have a scale attribute. I want to read that attribute, then realize instances and then read the uv_map attribute in the second picture, multiply it with the scale, and write it back. This is so that the planks in the object have uniform uv mapping.
I'm probably not understanding the attribute workflow because it seems to me like reading and writing (and more generally addressing by name) attributes should be the most basic of operations? Yet I can not find anything on it anywhere.
Update: I'm using Blender 3.1, so maybe this has to be done with fields now? Most attribute nodes used in tutorials are not available in 3.1 anyways