The window’s main element is the canvas. Once you start to → add scene elements, the canvas will be filled with nodes.

There are several basic operations:

Click on a node to select it. Shift-click or draw a rectangle to select more than one node.
Click-drag to move a node to a new position.
Hit Del or Backspace to delete nodes.
Click on a link to select it; hit Del or Backspace to delete it.

New connections between nodes are created this way:

Place the mouse pointer over a node.
Press the Cmd/Ctrl key while dragging a new line between two nodes.
During the connection process invalid nodes are dimmed, and valid connections are displayed in green.

These are the fundamental operations:

Zoom	MMW Alt + RMB + mouse drag
Panning	MMB + mouse drag Alt + LMB
Centre on mouse position	LMB + double click

If the nodes do not fit into the canvas you will see a navigation box (see image above). The light grey rectangle represents the currently visible nodes:

Area panning	Drag light-grey rectangle in the navigation box
Activate navigation box	Zoom in until the navigator appears
Deactivate navigation box	Zoom out until the navigator disappears

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