A number of keyboard shortcuts are available when booking spaces:
Book & Close / Update & Close / Request & Close Update Request & Close: Ctrl+Shift+S
Book & Continue / Update & Continue / Request & Continue / Update Request & Continue: Ctrl+Shift+Alt+S
Confirm Booking: Ctrl+Shift+Alt+O
Start Meeting: Ctrl+Shift+Alt+> Related button must be present on page.
Waitlist Booking: Ctrl+Shift+Alt+W Related button must be present on page.
Reject Booking: Ctrl+Shift+Alt+R