# Tips and FAQ

> Source: https://sumistudio.ai/en/docs/tips-shortcuts
> Last updated: 2026-10-29
> Index: https://sumistudio.ai/llms.txt · Full text: https://sumistudio.ai/llms-full.txt

This last chapter gathers the common shortcuts, what the save status means, and a few frequent questions. This guide writes key combinations as “⌘/Ctrl + key”: use the first on a Mac and the second on Windows or Linux. ⌥ is Alt and ⇧ is Shift.

## Common shortcuts

- Generate (with a node that can generate selected): ⌘/Ctrl + Enter;
- Open the “Add node” menu: Tab;
- Delete the selection: Delete or Backspace (doesn't fire while the cursor is in a text box, so you don't delete by accident);
- Undo / redo: ⌘/Ctrl + Z and ⌘/Ctrl + Shift + Z (on Windows, Ctrl + Y also works), up to 150 steps in a row;
- Copy nodes to the in-app clipboard: ⌘/Ctrl + C; paste: ⌘/Ctrl + V; duplicate: ⌘/Ctrl + D. Holding Alt while dragging a node also copies it, and ⌘/Ctrl + Alt + drag copies it together with its connections;
- Connect: ⌘/Ctrl + L. To copy an image to the system clipboard, use “Copy image” in the node's right-click menu (select one image node that has a result);
- Group / ungroup: ⌘/Ctrl + G and ⌘/Ctrl + Shift + G; storyboard group: ⌘/Ctrl + Alt + G; tidy the canvas: ⇧⌥F;
- Zoom: ⌘/Ctrl + = / -; fit view: ⌘/Ctrl + 0 or ⇧1; box select / hand / pen: V / H / P; hold Space and drag to move the canvas.

The “Shortcuts” button on the canvas's left toolbar opens a quick-reference panel at any time. If the panel doesn't show the keys for your system, switch between Mac and Windows in the panel.

(Image: The “Shortcuts” button on the left toolbar opens the quick-reference panel; switch between Mac and Windows keys at its top right)

## What the save status means

The canvas has no save button; the top bar shows the status live:

- Saved: the current content has been saved;
- Saving: your edits are being written to the server. Unsaved: some edits haven't been sent yet (usually turns into “Saving” within a few seconds);
- Save failed, retrying: a network problem caused the failure and the system retries automatically. As long as you don't close the whole browser, edits made in the meantime aren't lost. When the server explicitly rejects a save, retrying stops and the reason is shown;
- Version conflict: rare. Two buttons appear, “Copy local draft” and “Reload server copy”; copy the local draft as a backup first, then reload;
- View only: you don't have permission to edit right now, for example when viewing someone's read-only share link. When your personal canvas is open for editing somewhere else, it also becomes view only here with the notice “This canvas is being edited elsewhere”; click “Edit here instead” to take over editing.

## FAQ

- Canceling: you can cancel while the request hasn't been sent to the model yet, and the precharged credits are returned. Once the request has been sent, it can't be withdrawn through the normal cancel flow. A failed task isn't always fully refunded. Usage that's already confirmed may still be charged, and when the result is unknown, the precharge is held until it's been checked.
- If I close the browser before a save goes through, is it lost? No. The next time you open the canvas, edits that didn't sync while you were offline are filled in automatically;
- Can a read-only share let others edit? No. To edit together, put the canvas in a team project and invite the other person as an editor or above.

> ⌘/Ctrl + Enter generates, Tab adds a node, ⌘/Ctrl + 0 fits the view · “Save failed, retrying” recovers on its own · You can cancel before the request is sent and get the precharge back; failed tasks follow the usage and return rules