Indeed!
Taking that in yet another direction:

One could construct a general setup macro that
would configure devices for a given context, say,
playing a DVD. The macro would end with the single
press of setup allowing the user to then select
one of several refinements for the macro. Such
refinements might include a macro that configures
the entire system for DTS setting all of the
speaker parameters, sound field settings, etc. A
different key would configure things for Dolby
Digital. Another key would set things up for
listening to CD and yet another for HDCD -- all
without taking up primary key functionality. It
would seem that, in some cases, such an approach
allows one to add useful functionality and maybe
even break up an otherwise too lengthy macro...

Hmmm... Intriguing!

:SpispopD