Pick Pieces of product from Assembly through a buffer shelf


I have created a product assembly and transported it to the buffer shelf. From there i would like to pick 3 pieces out of the assembly and place it to the box. Can you advise how this can be done?

Additionally, is there a way to design random picking of the no of pieces. Meaning at times it will pick 2 to the box or pick 5 pieces to the boxes etc.

Testing123.vcmx (414.5 KB)