The '1 Window' command is used to select elements by enclosing them in a window. After choosing the command, you are prompted to define the two diagonal points that define the window. All components in this window, with at least one co-ordinate pair, are selected and highlighted ready for manipulation.
Lines and rectangles must have at least one coordinate point in the window.
The center point of the circle must be in the window.
Library components must have at least one corner in the window.
By using the 'M-Windows' command, it is possible to select elements using multiple windows. After defining the window, the 'Selection' menu re-appears. Here you can terminate the selection process, with the right mouse button (or <ESC> key), or you can continue adding more elements to the selection, e.g. with the '1 Object' option.
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Elements selected with 'Window' can only be deselected with the 'Objects' command
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On a complex drawing, it is sometimes easier to select a number of elements using the Window command and then to deselect the few that are not required by using the Objects command.