Use left mouse button or ←, ↑, →, ↓ to move selected elements of the graph model.
Scroll the mouse wheel forward to zooms in and backward to zoom out. Alternatively press = to zoom in and − to zoom out.
Use the middle mouse button or Ctrl+right mouse button or Ctrl+←, ↑, →, ↓ to pan the view.
In the top-left corner of the editor, between the horizontal and vertical rulers, there are four small toggle-buttons. These buttons provide a quick control for visibility of the grid, the rulers, the names and labels of graph elements. They are shortcuts to corresponding properties of the common preferences.