Keyboard

Atrium’s right-click menus show each action’s key at its right, in grey, so you can learn them where you use them: a hotkey you’ve set for its command in Obsidian, or else Atrium’s own. These menus are always drawn by Obsidian, even with native menus on, as the system’s can’t show them. Atrium starts with the page itself in focus, framed around all the cards. From there, Enter picks out the first card, a number its card, comma opens Atrium’s settings, and ? shows the keyboard shortcuts (also the Show keyboard shortcuts command and Keyboard shortcuts on the page’s right-click menu). Press Esc in a card’s editor, or click a card’s frame, to pick out the card; Esc on a picked-out card gives the keys back to the page. With a card picked out:

Key	Does
Arrows (h j k l with Vim on)	Pick out the nearest card that way
1–9, or Shift + 1–9	Pick out the card with that number; hold Shift to see each card’s number on its top edge. With ten or more cards, type both digits of 10 and up; a first digit on its own waits a moment, then picks out its card
Shift + arrows	Move the card that way: in tiles, past the tile beside it, cards side by side or stacked together moving as one, or out of its own row or stack at its edge; in columns, trading places with the nearest card
Shift+J, then an arrow or h j k l	In tiles, join the card with the tile that way
Shift+A, then an arrow or h j k l	Add a module on that side of the card: in tiles, splitting the card’s tile; in columns, above or below it, or in a new column on its left or right
Shift+A, then :	Add a module to the card’s stack, at the end of its tabs and in front; a card on its own becomes a stack. Also Add to stack in the card’s right-click menu, and the Add module to card’s stack command
Shift+S, then an arrow or h j k l	Split the card that way, its copy going on that side
Shift+R	Replace the card with a module chosen from Add module, in the same place
Shift+P	In tiles, flip the card’s row or stack: side by side becomes stacked, and stacked becomes side by side. With more cards picked out (Cmd/Ctrl- or Shift-click their frames), turns just those the other way
Shift+X	With two cards picked out, swap them
:	Stack the cards picked out behind the first, their tabs after its own
} and {	Show the next or previous card in the stack; its tabs keep their order, the one showing in its own place
Option+; (…)	Take the card out of its stack, beside it
Shift+B	In tiles, give the cards in the card’s row or stack equal sizes; Equal sizes for all cards, on the page’s right-click menu, does the whole page
Tab	Go back to the card picked out before, and Tab again to return
Cmd/Ctrl + Z	Undo the last change: to the layout, a card’s settings, a workspace, or a note a card’s action wrote; Cmd/Ctrl + Shift + Z redoes it
Enter	Go into the card: its editor, its first text box, or a list it has
Space	Expand the card, or put it back
[ and ], t	On the daily note and agenda cards, show the day before or after, or today
Shift+M	Fold or unfold the card
f	Filter the card
,	Open the card’s settings: up and down arrows move between settings, Tab goes into one and on to the next, Space flips a toggle, Esc comes back out (or, on a setting, cancels) and Enter saves
+, then arrows	Resize mode, until +, Esc or Enter: a dashed frame marks the card, solid along the edges that can move, with its size. An arrow pushes the edge on that side out, Shift + arrow pulls it in: in tiles, the tiles beyond it give or take the room; in columns, → and ← widen and narrow its column, and ↓ and ↑ grow and shrink its height; expanded, its width and height. = and - grow or shrink the card on every side at once. Resize step in Atrium’s settings sets how much each press changes
Delete or Backspace	Remove the card (its note stays) and pick out the nearest one
Cmd/Ctrl+W (Obsidian’s close tab hotkey)	Remove the card, also while typing in it or in its page, rather than close Atrium
Esc	Put an expanded card back, or let the card go

Some cards add their own keys while picked out: see Modules.

Every action is also a command, so you can give it a hotkey of your own in Obsidian’s settings.