Keyboard Essentials

You can do everything in liveplanner with the mouse or a finger, but a few keyboard shortcuts make planning much faster. This is the short list worth committing to memory. For the complete reference, see Keyboard Shortcuts. On Windows and Linux, read Cmd as Ctrl.

Everywhere in the editor

Cmd+Z undoes, and Cmd+Shift+Z (or Ctrl+Y) redoes. A moved card goes back, a trashed card comes back. The same controls sit in the bottom-right corner. See Undo.
Cmd+K (or Cmd+.) opens search, which finds plans, tabs, settings and help articles and also runs commands (to find a card, use Find in the bottom-right corner). See Command Palette.
Z turns Zen mode on and off, hiding the toolbars and panels so you can focus on the work.
Escape closes an open dialog, menu or card.
F6 moves focus between the parts of the screen (the header, the bottom-right controls and the tab bar), and Shift+F6 moves back.

On a board

Press Tab until a card is focused, then:

Arrow keys move between cards.
Enter (or Space) opens the card.
Shift+Left and Shift+Right move the card to the previous or next column; Shift+Up and Shift+Down move it within its column.
N adds a card to the focused card's column.
Delete moves the card to the Trash, where you can restore it.

On a sheet

Sheets use the keys you know from other spreadsheets:

Arrow keys move between cells; hold Shift to select a range, and Cmd to jump to the edge of the data.
Tab and Enter move right and down (with Shift, left and up). Start typing to replace a cell, or press F2 to edit what's in it.
Delete or Backspace clears the selected cells.
Cmd+C, Cmd+X and Cmd+V copy, cut and paste, and Cmd+Shift+V pastes values only.
Cmd+B, Cmd+I and Cmd+U set bold, italic and underline.
Cmd+D and Cmd+R fill down and right, and Cmd+F finds in the sheet.