How to see device assembly code for shaders

I have used NSight Compute for long time. I like the feature to check the assembly codes for shaders to help me see how my shader source codes mapping to device assembly instructions. It is very helpful for me to tune the performance from instruction level optimization.

I try to find the same feature on Nsight Graphics to debug DX12 computer shader, but didn’t get it anywhere. The only info I can get the #reg used for each shader, but no any info for assembly shaders. I am wondering is it supported?