AUN Bookmark

AUNBookmark is ComfyUI's answer to "I keep losing the KSampler in this 300-node monster." You drop one on a part of the graph you visit constantly, give it a key and a zoom level, and from then on pressing that key snaps the canvas to that exact position at that exact zoom. It's a pure frontend node - it has no sockets, does nothing during execution, and its Python side is literally a do_nothing that returns an empty tuple. All the magic lives in the JavaScript.

Two widgets configure it. shortcut_key is a single character - 1, a, whatever - that you press to jump. zoom sets the zoom level the jump lands on, from 0.01 (zoomed way out, whole-graph view) up to 10.0 (pixel-peeping detail). Set zoom to 1 for a normal view, or crank it if you bookmarked a spot specifically to inspect something up close. The node's title shows a 🔖 so it reads as a bookmark at a glance.

How it works is worth knowing because it explains the edge cases. The extension registers a global keydown listener that checks whether your shortcut matches, then repositions the canvas so this node lands at the top-left of the viewport at the configured scale - the same "place it at top-left" convention rgthree's own bookmark uses. The listener politely ignores the key when you're typing in an input or textarea, so your bookmark key won't hijack typing into a prompt widget. And when you delete the node, the listener goes with it - no ghost keybindings left behind.

Where people trip: your bookmark key is global, not scoped to a canvas or subgraph, so if two bookmarks share a key, the last one you created tends to win the listener race. Use distinct keys. Also, because zoom is stored per bookmark, if you jump to a bookmark and the view looks "wrong," check the zoom widget - you probably bookmarked it while zoomed in. There's no animation; the jump is instant, which is honestly what you want when you're mid-flow.

This is the kind of node you dismiss until you've been stuck in a giant workflow once, and then you can't imagine not having it. It pairs with the pack's collapse/bypass controllers for keeping big graphs navigable.

Install with the whole pack: ComfyUI Manager (search "AUN") or cd ComfyUI/custom_nodes && git clone https://github.com/loz2754/AUN-ComfyUI-Nodes, then restart. No models, no heavy dependencies, nothing to download. If bookmarks and zoom-out navigation feel like the same problem, this is the "several bookmarks with per-bookmark zoom" upgrade.