Selection

A selection is a set of nobs that the user has flagged to apply a command to all members of the group. The simple point and click metaphor is sufficient for commands which apply to only one object. For example moving a single nob can easily be executed by positioning the mouse cursor over the nob, pressing the left mouse button and moving the mouse while keeping the button pressed. If however several nobs should be moved simultaneously a two step procedure is neccessary. First the objects to be moved must be selected, then the move can take place.

There are several methods for selecting objects:
 * Every which is not already selected nob has the "Select" command in its context menue
 * A quicker method to select single nobs is a left double click on the nob
 * A group of nobs, which are located in a rectangular area can be selected with the right mouse button. Move the mouse cursor to any corner of the rectangle, press the right mouse button and move the mouse to the opposite corner, while keeping the button pressed.

If a selection is too large, i.e. it contains nobs that should not be included, they can be removed from the selection, by deselecting them.
 * Selected nobs have have the "Deselect" command in their context menue, instead of the "Select" command.
 * A left double click on a selected nob deselcts it

To deselect all nobs there are two methods
 * The context menue of the window background (mouse cursor is not over any nob) includes the "Deselect All" command.
 * The ESC key (on most keyboards on the upper left corner of the keypad) also executes the "Deselect all" command.