Changing numeric arg c-X O

[MOON at SCRC-TENEX]

    Date: Friday, 23 April 1982, 22:44-EST
    From: David Chapman <Zvona at MIT-AI>
    To: bug-zwei at MIT-AI

    what about making it so that a numeric arg to c-X o
    selects the numeric-argth window from the top, rather
    than doing numeric-arg c-X o rotations?
This would be all right with me; it's different from c-m-L and
t-S since all the alternatives are visible.  What should it do
in the case where you are currently in 1-window mode, i.e. all
the alternatives are not visible?