LOAD /RANGE
[DISPLAY\]LOAD File [Status] /RANGE Min Max Type [/FREQUENCY NewFreq]
Load only the channels between the First and Last defined by Min Max and
Type. Type can be CHANNEL, VELOCITY or FREQUENCY. If the Data cube has no
Frequency/Velocity axis, only CHANNEL is allowed.
For type CHANNEL, Min and Max indicate offsets from Channel 1 and Channel
Nchan (the number of channels in the data set). Thus Max can be negative: it
then indicates Last = Nchan-Max. Also Min=0 and Max=0 implies loading all
the channels.
The /RANGE option is not (yet) allowed for FITS files.