Warehouse shelf with shuttle vehicles


Hi! Guys
I want to achieve the effect shown in the video through VC.
A brief description is as follows:

  1. The products have a property named “SKU_number” which should be assigned value by expression uniform(1,5) at the time of creation;
  2. The products should be transported through the lift_conveyor to the corresponding in_dock which has the index as same as the “SKU_number”;
  3. The two shuttle vehicles do the inbound job. If the level of the in_dock in which the product is right now placed differs from any of the two vehicles, therefore we should select one vehicle to switch to the target level by the “Shuttle_lifter”;
  4. Using the custom method for finding and assigning slots to products. The vehicles just do the travelling movement along the X-axis;

I am not good at using VC right now. I have tried to find some related information in the Academy and the Help file. And ended up with no lesson or information found.
Could anyone give me a clue. Thanks in advance.
Shuttles.vcmx (646.8 KB)