EndSubgproupNode

Defines which type of nodes will be used as a "sub group end" node;

MainConnectorOrientation

A key defining the space orientation of a "Control Flow" and respectively for the layout;

MainSubgproupConnector

Defines which type of connectors can be used as guideline (defining the graph control flow).

StartSubgproupNode

Defines which type of nodes will be used as a "sub group" start node.