Shortcuts

Action	Shortcut
Deal	⌃⌥⌘D
Sweep	⌃⌥⌘S
Undo	⌃⌥⌘Z
Next grid	⌃⌥⌘G
Pop-Up Controller	⌃⌥⌘Space
Command Bar	⌃⌥⌘M
Left half	⌃⌥←

Automation

SpanWise accepts URL actions such as spanwise://deal, spanwise://grid/next, spanwise://layout/Work and spanwise://place?cell=2. The same core actions are available to Shortcuts through App Intents and to AppleScript:

tell application "SpanWise" to deal
tell application "SpanWise" to next grid
tell application "SpanWise" to apply layout "Work"
tell application "SpanWise" to undo