Thanks to you both for the reply!
I think I am not fully understanding this. Do I have to assign the vocal track to an output to add reverb?
What if I simply want to add reverb to the input that the vocalist is recording on? I don't want to add reverb to the rest of the mix; I just want the singer to hear what he/she is recording but with some reverb (but only the dry vocal input is being recorded). It sounds like it would be easier, esp. if the reverb can't be recorded anyway.
Thanks again!
JC