EXS 24 Logic Sampler Users Group

Hi all,

Is it possible to use the EXS24 in Logic triggered by another midi 
app (i.e. Sibelius or another)?
 
In other words, I would like to use an external midi app to trigger 
the sample libraries I use w/ the EXS24.

What is the best way to set up the Logic environment 
in order to accomplish this?

Can someone help me configure the "physical input" objects in the 
Logic environment?

Your help is greatly appreciated, thanks in advance,

JHanks.