Add 'sub-graphs' to ComfyUI

[Creare-d-arte]

Feature Idea

Node-based programs (like Geogen, WorldMachine, etc.) feature what are called "sub-graphs" or "Macros".

Double-clicking a subgraph/Macro node will open a blank node graph.

In this new graph/space, one can place a series of nodes; and connect then to special Input & Output nodes.

The Subgraph/Macro nodes in the main graph/space, update their inputs & outputs according to the number of connected Input & Output nodes within the sub-graph.

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The common purpose of this feature; is to clean up the main graph/space.

e.g. I aim to use such, to hide a bunch of nodes that the user(myself) doesn't need to see.

There are other purposes for subgraphs;

1. In WorldMachine, Macros are treated like Custom Nodes; and are distributed on the forums like such.

2. Saving and loading sub-graphs into workflows is a better alterative to that of ComfyUI's 'Templates'.

Existing Solutions

No response

Other

No response

[LukeG89]

Someone already proposed this feature request in the frontend repo: Comfy-Org/ComfyUI_frontend#1077

I think the current way to have subgraphs is using this custom node: ComfyUI-Sub-Nodes

And maybe components have a similar purpose: ComfyUI-Workflow-Component

[Creare-d-arte]

Someone...

The frontend request seems very similar to mine; though I would prefer this issue remain open, for exposure.

As for the suggestions; unfortunately both are janky and out-of-date, and such are not viable for me/ComfyUI users.

[ltdrdata]

Someone already proposed this feature request in the frontend repo: Comfy-Org/ComfyUI_frontend#1077

I think the current way to have subgraphs is using this custom node: ComfyUI-Sub-Nodes

And maybe components have a similar purpose: ComfyUI-Workflow-Component

ComfyUI-Workflow-Component was an experimentally implemented feature, and since it hasn't been maintained for a while and cannot be used properly, I recommend not using it.
I plan to maintain it when time permits in the future.