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.

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, Select Next / Previous Cell, Change Cell to Raw, Expand or Collapse Output, Clear Cell Output, Clear All Outputs, Interrupt Kernel, Restart Kernel, Restart Kernel and Run All Cells, Reconnect to Kernel and Change Kernel. The notebook toolbar and a cell’s hover toolbar reach most of them in one click.

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.