Key Bindings

Every action here is also in the command palette (⇧⌘P / Ctrl+Shift+P), which shows each command’s key binding beside it. The Help tab (F1) lists every shortcut in one place, with a filter. If you forget a shortcut, either one is the place to look.

Where a row gives two macOS bindings, both work. ⌘ is the usual editor convention; ⌃ is what Zasper used first, and it still works.

Global

Zoom scales the whole window, including toolbars and menus. To change only the size of code, terminal text and cell output, use Increase / Decrease Font Size from the palette. Those have no key binding.

On Windows and Linux, a shell uses some of these keys itself: Ctrl+B moves the cursor back one character and Ctrl+K deletes to the end of the line. While a terminal has focus, shortcuts on those keys go to the shell rather than to Zasper. Click outside the terminal, or use the search box and the sidebar button in the top bar. Search in Files and Problems also do nothing from a focused terminal on Windows and Linux. Toggle Terminal uses ⌃ on macOS too, and works with a terminal focused.

On Windows and Linux, Problems and Change Cell to Markdown share Ctrl+Shift+M. While a notebook is the active tab, the chord changes the cell to Markdown and does not open Problems; use the palette there.

Tabs

Right-click a tab for the same actions, plus Copy Path and Reveal in File Explorer. When the tabs you close have unsaved changes, Zasper asks about all of them in one dialog.

Notebook

Cell operations use ⌃⇧ rather than a bare ⌃ on purpose. ⌃A, ⌃B, ⌃E and ⌃K are the system text-editing bindings on macOS, and Ctrl+A is select-all everywhere else, so a bare binding would be caught before the cell’s editor received it.

Undo Cell Operation is the notebook’s own history. It undoes an inserted, deleted, cut, pasted or retyped cell, and a cleared output. ⌘Z inside a cell still undoes the text you typed there.

Move Cell Up / Down reorders the notebook. It is not the same as Select Next / Previous Cell, which only moves the selection. A cell’s hover toolbar has both: the chevrons move the selection and the arrows move the cell. Focus moves with the cell, so you can hold the binding to move one cell several places.

These actions have no key binding; run them from the palette: Run All Cells, Cut / Copy / Paste Cell, Change Cell to Raw, Change Cell to SQL, Expand or Collapse Output, Clear Cell Output, Clear All Outputs, Interrupt Kernel, Restart Kernel, Restart Kernel and Run All Cells, Reconnect to Kernel, Change Kernel, and Add Cell to Chat and Add Output to Chat for the agent panel. The notebook toolbar and a cell’s hover toolbar reach most of them in one click.

Variables opens the variables panel, and What’s New the release notes; neither has a binding.

Command Mode

When a cell is selected and its editor does not have focus, the notebook is in command mode. These keys work only then:

Edit Cell opens the selected cell for editing. Run Cell and Run Cell and Select Next work in command mode as well.

Inside a Cell

These keys belong to the editor rather than to a command, because what they do depends on where the cursor is.

A single click on a rendered markdown cell only selects it; it stays rendered.

File Editor

These work in a file’s editor. Go to Definition, Find All References, Rename Symbol, Quick Fix and Format Document need a language server for the file’s language.