Syntax: ClipNumber [n]
Abbreviation: CN
sets the current clip number. This number is used by
OpenClip and SaveClip, and by Copy, Cut and
Paste if they are called without any argument. Its default value is
zero. n is limited only by the integer size of the machine ne
is running on.
If the optional argument n is not specified, you can enter it on the input line, the default being the current clip number.