Athanor by arbastro
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How to work with tabs

New tab is Ctrl+T and Close tab Ctrl+W in the desktop app (the + and X on the tab bar everywhere; a closed document stays in Home), Reopen closed tab Ctrl+Alt+T, Next tab Ctrl+Tab and Previous tab Ctrl+Shift+Tab.

On a Mac, Ctrl is Cmd.

Every document opens in a tab of its own, with Home always the first tab. A tab takes its name from what you drew, such as Caffeine, until you give the document a name of its own.

The tab bar with Home, four drawings named after their structures and a problem set open.The tab bar with Home, four drawings named after their structures and a problem set open.

Steps

  1. Press Ctrl+T (New tab, desktop app) or click the + at the end of the tab bar. Home opens in the new tab; pick what to start.
  2. Click a tab to switch to it, or press Ctrl+Tab (Next tab) and Ctrl+Shift+Tab (Previous tab).
  3. Press Ctrl+W (Close tab, desktop app) or click the X on the tab to close it. Closing a tab does not delete anything: the document stays in Home.
  4. Closed one by mistake? Press Ctrl+Alt+T (Reopen closed tab). The last tab you closed comes back where it was.
Command Shortcut
New tab Ctrl+T (desktop app)
Close tab Ctrl+W (desktop app)
Reopen closed tab Ctrl+Alt+T
Next tab Ctrl+Tab
Previous tab Ctrl+Shift+Tab

Note

Ctrl+T and Ctrl+W work in the desktop app only: in a web browser, the browser keeps them for its own tabs. In the browser, use the + at the end of the tab bar, the X on a tab, or File › New tab and File › Close tab in the Main menu.

Getting startedHow to start a new document from HomeOpen Home (the first tab, or File › Home) and pick a start card: Blank drawing, Document pages, From a template, Animate a mechanism or process, Interactive problem set, or Practice arrow-pushing. New document is Ctrl+N.

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Last updated Nov 12, 2026