Drag & Drop component name from the glossary view to the workspace to create a component.
Drag & Drop a component to change its position.
Drag & Drop an operator connector to change its position.
Drag an operator connector and drop it on an other highlited component to connect two connectors from two operators.
Clic on a control connector and the clic on a compatible (highlighted) component to connect an operator and a control.
Select several component and Drag & Drop those elements to change their positions.
CTRL + Q + Mouse wheel: Zoom in / Zoom out
CTRL + Q + Drag&Drop: Change the view position
CTRL + A: Select all
Operator Selected + W: Show informations
DEL: Delete selected components