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center current center origin

toggle single image mode transitions (t) toggle single image mode white background (w)

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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)