Selecting

For being able to select, editor has to be in select mode. When the mouse pointer is on the drawing canvas its shape changes to default shape which is generally arrow shape. Class graph components can be selected by clicking on it. If the mouse button is pressed down on the canvas in a blank area and dragged around you will see a selection rectangle. Once the mouse button is released whatever is inside the selection rectangle, fully or partially is selected. For deselecting just click on blank canvas when in selection mode.