drawer stack

[william humphrey]

I was just trying to open a drawer stack on my mac OS 10.6.4 system
and noticed it did nothing at all (stack doesn't even open when using
the drawer command) and then I read this in the dictionary:
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Cross-platform note:  On Mac OS, Unix, and Windows systems, drawers
are not supported, so the drawer command opens the stack as a palette
instead. The palette uses the current rectangle of the stack and does
not resize or move it.
--------

So I'm wondering... what system are the folks at RunRev talking about
where drawers do work? Perhaps RunRev works on BeOs?