Stacker Crane priority

Why is it that when the Stacker Crane has two outlets and I set a lower number for the priority of the conveyor below, it takes the first product to the conveyor above?

What I mean is, how can I make the pink boxes palletise in the opposite order?

orden de la paletización

If you use separate processes, you would need to add some constraints to these processes. I mean, the bottom process must be done first, and only after that is finished you can accept items in the middle, and so on.

Alternatively, if you could do this with just one process, you can use the Transport Pattern in, or multiple Transport In statements to different frames.

And how can I add restrictions? Now I have managed to put the first boxes underneath but then I can’t manage to put the other boxes on top

TYSON2_2.vcmx (3.4 MB)