Apple Logic Pro /LogicExpress Discussion

I'm sorry I never tried that, maybe someone else can answer better. I have 
done that sort of thing the "old fashioned" way. I just solo the track, then 
take the outputs and put them through the external devices, then record them to 
new tracks. Then I open the sample editor and remove the extra blank space that 
represents the latency, so its sample accurate in the start point.