The Multiple Compartments’ schema uses 3 levels or more of hierarchy. Starting from the first child on the top, each level is checked with the previous one. The child objects belonging to its parent spaces are labelled TAG as compartmentalized.

Compartments setup:

The left most item is a reference. The items below the left most item is the subject. It must be shifted one position to right compared to the reference.

The 3rd level is set by shifting the TAG one position to right compared to the subject on top of it.

The commands on top of the dialog are used to set the hierarchy.