FVWM: One more question...

Other than the questions I've alreasdy posted, I just have one
more and then I think I'm done.  If i can find a solution for
this and the others I've posted, then I think I'll be a happy
camper.

On the new system I'm configuring, I'm running without any
.fvwmrc file in the home directory of the account that I start
X from.  So I guess this means that Fvwm is picking up some
default .fvwmrc file from someplace.  That's fine, and
whereever it is, and whatever it contains, it seems to -mostly-
fit my needs rather well, so I don't really need to diddle it...
much.  I've got a nice traditional clock face, and a nice xbiff
thingy to tell me know when I have new mail.  Perfect.  But
just below those things there is an empty space.  I would very
much like to place another xclock in that empty space as follows:

   xclock -digtal -strftime '%a %b %d %T'

Can someone tell me how to do that?