Apple Aperture 2 - Manual (Page 54)

54 Part I Interface and Acquisition
Version Buttons
Stacking Buttons
A Duplicate Version Click this button to create a new version of the selected image.
B New Version
From Master Click this button to create a version from the original master image.
A duplicate of the master image is created.
B A
A Stack Pick Select a stack item, then click this button to mark the image as its
stack’s pick.
B Promote Select a stack item, then click this button to move the selected
stack item closer to the stack’s pick.
C Demote Select a stack item, then click this button to move the selected
stack item farther from the stack’s pick.
D Album Pick Select an image version to represent a stack, then click this button
to select the image as the pick within that particular album (the
stack can have a different pick image in another album).
B C D A