Selection Filter Mapkey

I'd like to create mapkeys for the selection filters I use
frequently. I know, I know... it's only two clicks, but I'm a
keyboard jockey that avoids using my mouse whenever possible. I've
tried recording this mapkey, but there's one problem. The syntax for
selecting a particular filter is completely dependent on its relative
position in the list of available filters. This means that depending
on
what feature/command is currently active, the surface filter could be
either 10th, 13th, etc. Overloading the mapkey with commands for
both
#10 & #13 won't work because you'll just end up selecting whatever
the
last filter number is, regardless of whether it's actually the
surface
filter. It's times like this I wish Proe had a real macro language
(J-
Link doesn't count unless you have a week to devote to learning how
to
use and implement Java). Thanks in advance.