Persistent and settable "home" page view state

[Droj]

• I agree to follow the Code of Conduct that this project adheres to.
• I have searched the issue tracker for a feature request that matches the one I want to file, without success.

Is your feature request related to a problem? Please describe.
I'm always frustrated when ... I open a large diagram and I have to go find my place again. Diagrams can get large, and can have several pages each with large diagrams. I have several like this that I build on regularly, but sometimes time goes by and I don't remember exactly where I was when I last worked on it. Even if I do remember, it's time consuming to scroll and zoom back to my place for each page every single time.

Describe the solution you'd like

The "home" view state for each page of a the diagram can be saved. The state includes the zoom level, the scroll position, and an auto-save boolean.

In the "View" menu, next to "Reset View", is a new action to "Set Home View", which will save the current view state to the page properties. A keyboard shortcut is also supported for this action.

The "home view" zoom and scroll position for the page will be used when the "Reset View" action is invoked.

The auto-save boolean can be set by the user using a checkbox named "Persistent view" in the "Diagram" properties tab, in the "View" section alongside "Background Color", "Shadow", etc:

• When checked (the default), the page view state values will be saved as the "home view" when the application exits. This allows the user's last state to be preserved.
• When unchecked, page view state will not be saved on exit, and the last set home view will be what is saved. This allows the user to "lock" a diagram to a particular view state.

When a diagram is opened, each page's "home view" state is restored:

• if the view state is missing (older diagrams), then current behavior is used
• otherwise, the zoom, scroll, and auto-save are restored for each page in the diagram

If a diagram is being edited collaboratively and auto-save is enabled for a page, then last one out wins. If this is not desired by the users, then auto-save for that page can be disabled, leaving only the manual "Set Home View" option.

Describe alternatives you've considered
I have tried using a custom link to set the "viewbox", which I could then click after opening the diagram. This partially works, because I can set the scroll. However,

• the zoom level is inconsistent and affected by the size of the application window
• changing the viewbox settings is very manual and time consuming, making it fairly impractical

Additional context
Thank you for providing such a powerful tool for diagramming. I appreciate your consideration of this suggestion.

Restoring state is actually a very common feature for many types of editors:

• VS Code restores the state of all of my open editors, cursor positions, window arrangements, etc when I start it
• MS Office apps have a "pick up where you left off" feature
• by browser restores all of my tabs at start
• I can do a full restart of my iPhone, and when it's back, ever single app is exactly how I left it (most of the time)

For daily use of drawio, which we all want, this can be a big time saver, and will provide a more seamless experience.

[draw-io-triage-bot]

👋 Thank you for opening this issue!

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Summary: The user requests that draw.io persist the view state (zoom level, scroll position) for each page in a diagram, so that reopening a file restores the user's last working view. They also propose a manual "Set Home View" action and a per-page toggle to control whether the view auto-saves on exit or stays locked to a manually set position.

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📝 Additional Information Needed

To help us investigate this more effectively, could you please provide:

• Are you primarily using draw.io desktop or the web version? This matters because persistence mechanisms differ between platforms.
• Would a simpler approach—such as just automatically saving/restoring the last view state per page without the 'Set Home View' and 'Persistent view' toggle—meet most of your needs, or is the manual home view lock functionality essential to your workflow?

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_{🤖 This is an automated response to help with initial triage. A human maintainer will review this issue. If you've provided all the requested information, no further action is needed - we'll get back to you soon!}

[Droj]

WRT the triage bot's questions:

1. The idea is that the state is saved to the diagram file (as opposed to some "persistence mechanism" outside of the file), meaning that it will be restored even when moving a diagram between a confluence space and local disk. I use both web and desktop.
2. Only saving the last view state per page is a bare minimum, but will be very helpful. The 'home view' functionality also allows the user to influence the "reset" view functionality, which would be disjointed from the restored view at startup. The persistent toggle optionally improves predictability when collaborating with others, if needed; e.g. someone just looking around but not actively working a diagram would unintentionally change the view for others.