Click the Speedy Entry tool , and click the measure
in question. The editing frame appears.
Press the 7 key. Unless Use MIDI Device
has been turned off in the Speedy menu, a whole rest appears. (If not,
a whole note appears; click it and press BACKSPACE or SHIFT+DELETE to turn it into
a whole rest.) Also use 7 to specify a duration of a whole rest in Simple Entry.