Text Switch Stack

Text Switch Stack answers the eternal workflow question "how do I turn one part of my prompt off without deleting it?" instead of the other classic - "which of these prompts do I pick?" - and that distinction is the whole thing. Where rgthree's Text Switch selects one input out of many, this node takes up to 32 text slots, lets you tick each one on or off, and merges the enabled ones into a single string. Build your prompt out of swappable chunks - subject, style, lighting, quality tags - and A/B test by flipping booleans instead of retyping prompts.

How it works is refreshingly legible. Each slot has an enabled_ toggle and a part_ text box (multiline, so multi-line blocks are fine). On execution it walks the slots in order, skips any that are disabled or empty, and joins what's left. The merge isn't a comma-space join, which catches people out: parts are joined with newlines, and the auto_comma option (on by default) appends a trailing English comma to every part except the last - only when the part doesn't already end in one. So the default output for three parts is:

subject,
style,
quality tags

If that trailing-comma-then-newline style annoys you - and plenty of people expect ", " - flip auto_comma off and write your own separators into the parts. There's no separator setting, so that's the trade.

The inputs that matter:

• text_count - how many slots show up, from 1 to 32. This controls how many are processed, and it's where the trap lives: lower it to 2 when your text is sitting in part 3, and part 3 silently stops counting. The node's own front-end JS hides the widgets beyond the count so you can watch it happen.
• auto_comma - the trailing-comma behavior above.
• enabled_N / part_N - one pair per slot; only enabled, non-empty parts reach the output.

Output is a single STRING, ready for a positive prompt input, a text-encode node, or a CLIP conditioning.

Install is the pack's standard trivial route. ComfyUI Manager, search comfyui-uonr-nodes, or:

cd ComfyUI/custom_nodes
git clone https://github.com/uonr/comfyui-uonr-nodes

Restart ComfyUI. No dependencies, no models - this is a pure-front-end-plus-one-function node. Worth knowing the dynamic slot behavior relies on the default LiteGraph front end; in the stock UI it collapses and expands as you change text_count, which is the nicest part of the experience.

Realistic gripes: because enabled and part are fixed widget pairs, you can't wire a slot from another node's string output - it's typing or pasting only. And with the newline join plus auto-comma, you should test one output before trusting a 32-slot monster into a workflow. But for the common case - a handful of prompt chunks you keep swapping - it beats juggling a dozen Muted node groups, and that's a real win.