The commands available on a Block are as follows:

Commands on a Block

SysML diagram: Launch the SyML diagram creation wizard.

Distributed property: Creates a DistributedProperty.

Reference: Creates an Attribute.

Connector property: Creates a ConnectorProperty.

Participant property: Creates a ParticipantProperty.

Part: Creates a Part.

Flow port: Creates a FlowPort.

Port: Creates a Port.