A ControlDraw diagram can be associated with a matrix in one of two ways
The First is the Page matrix - each row of this matrix contains dynamic values of selected diagram symbols.
The Second is the Set State matrix. this is used by the Special Object, SetMxState.
This is a special sort of Transition for use in Grafcet and PFC Phase diagrams.
When this object is dropped onto a diagram or double clicked, you are prompted with a list of the states in the Set State matrix that is associated with the page.
Typically you would use this when drawing an equipment phase diagram. You build the Equipment module and then animate it, or at least create a state object or a row in the Equipment module matrix. Then you can make the steps of a sequence set the EM into EM states by picking from a list.
These associations are set in the Diagram Details