Create a new note by current cursor position:
double click
Create a new note connected by a dotted line to the selected note:
⌘ + double click
Create a new unconnected note directly beneath the selected note:
⌘ + return
Create a new note connected by an arrow to the new note:
⎇+double click
Create a new note connected by a dotted line to the left of the selected note:
^⌘←
Create a new note connected by a dotted line to the right of the selected note:
^⌘→
Create a new note connected by a dotted line to the top of the selected note:
^⌘↑
Create a new note connected by a dotted line to the bottom of the selected note:
^⌘↓
Create a new note between the two connected notes:
double click connection
(for existing notes)
Dragging a note on top of another note will create a dotted connection between the two notes
Holding this down while releasing creates a connection with an arrow to the other note:
⎇
Holding this while releasing creates a connection with an arrow from the other note:
⎇⌘
Holding this while releasing creates a connection with arrows on both sides:
shift+⌘
Add label to the connection of two selected notes:
⎇⌘L
Removes connection(s) between all selected notes:
⌘<
Toggless the inspector:
⎇⌘I
Zoom in:
⎇⌘↑
Zoom out:
⎇⌘↑
Show entire canvas (while pressed):
Z
Zoom to actual size:
⌘0
Zoom to fit:
⌘9
Edit a note:
double click
Split note:
⎇⌘K
Toggle between Movement and Selection modes:
M
In Movement mode selected notes move when arrow keys are pressed (↑, ↓, ←, → ). Selection mode cycles through the notes when the arrow keys are pressed.
Selection mode seems odd; It's hard to anticipate which note will be highlighted next when pushing a given arrow key. In general I found this feature confusing and usually just stay in Movement mode, opting to select notes with mouse + cursor.
Marquee mode (multi-select):
click + drag