Toggle Markers (m) toggle background mode (b)

center current (o) center origin

toggle single image mode transitions (t)

first (home) prev (left) next (right) last (end)

left (h) Up (k) Down (j) right (l)

Zoom in (+) Zoom out (-) Original (0) Image (1) Three (3)

toggle wide view

create ribbon above (helper)
create ribbon below (helper)

merge ribbons up
merge ribbons down

demote image (shift-up)
promote image (shift-down)
NOTE: ctrl-shift-up / ctrl-shift-down will demote / promote an image to a new empty ribbon (the default if no ribbon exists)

focus above ribbon (up)
focus below ribbon (down)