Image Push
The Image Push tool adds an image into the Image Stack.
Using the Image Push Tool
Drag the Image Stack off the ROT onto the "Stack" area of the Image Push tool's inputs page. When the tool is run the image that is on the viewer will be added to the stack.
Conceptually,
the image push tool stacks images one on top of another.
Consequently, the first pushed image will be placed on the
bottom, the second pushed image will be placed on top of the first, the
third on top of the second and so on. When an image is popped it will be taken off the top of the stack, when an image is pulled
it will be taken off the bottom of the stack. When an image is
taken from the stack it is removed from the stack completely, so if the
third image is popped, the fourth image, when pushed, will be placed on
the second.