Feature request: How about blender like nodegroups ?

I dont know if you have experience with blender , but in blender you can create nodegroups which have multiple nodes in them with input and output nodes which are then exposed through the nodegroup ui as a "supernode", that means you build any type of "supernodes" and once you tab into them the internal structure is exposed. I have a hard time describing this so ill add some screenshots:

this is a random nodegroup with the input and output node :

which is exposed to this "supernode" once you tab out of the group and go back to the parentflow:

as you can see all the inputs and outputs get then added to the nodegroups ui
**this is a perfect design** and works awesome for the complicated shadernodes and geometrynodes networks in blender.

i hope this could be implemented , as it would fix the need for many of the custom nodes which try to achieve a similar thing. (there are too many custom nodes already , its really cluttered and weighs down on comfyui's qol experience)