Ranges and box ranges can be defined using a number of methods. Predefined
editing keys may be pressed to select a range or box range, editing commands may
be issued, or in the X and MS Windows versions of nu/TPU, the mouse may be used
to define a range by holding the left mouse button while dragging the mouse
pointer over the desired range. Once a range or box range is defined, that block
of text may be edited as one entity, being moved, copied, deleted, or pasted in
either insert or overstrike mode.
RANGES AND BOXES