Each equipment has several predefined connectors.

Pointed connectors are inlet connectors.    Squared connectors are outlet connectors.

 To add streams

• Point to the inlet connector. The Flash will invert and the cursor will change to a cross-hair when the cursor is positioned correctly for drawing a stream. Pointing to any part of the connector will show the connector name. 

• Press and hold the left mouse button down, move the cursor away from the Flash to draw the stream and release the left mouse button.
• Repeat the above to draw streams at each outlet connector.

• Note that most of the equipments require that all streams are created before running the model. In case that streams are not connected, an error message is displayed: "Missing Streams". See also the description of the Flash Tank equipment.
• A stream may be optional and in this case the equipment may run without it.