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To modify certain elements of the structure, Sfere2 first has to have an indication on which elements need modification. This is done using selection. selection Selection within Sfere2 is done using the aptly named "Select"-command.
There are two ways of selecting, dragging a window around (multiple) objects and clicking on single objects. selection by dragging a window With the "Select"-command active, click somewhere within the view and drag (holding the mousebutton down). This will show the selection window. Any object within the selection window will become selected, indicated by highlighting it. There is a difference in dragging the window from left-to-right and dragging the window from right-to-left: Dragging from left-to-right will select all objects that are completely within the selection window. Dragging from right-to-left will select all objects that are partialy within the selection window.
selection by clicking on single items With the "Select"-command active, simply click on an object to select it. adding to and removing from the current selection The current selection can be altered by holding down Shift or Ctrl during selection.
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