Unreal Engine 4.25 Preview

Hi everyone,

I was testing the new HISM custom data functionality (which is really amazing). However, it currently only works in the vertex shader.
Are there any plans to make that data/node available in the general pixel shader to influence color values?
If not, does anyone have an idea on how to pass those values further up the pipeline to access at least the instance ID in the regular material/pixel shader?