EXS 24 Logic Sampler Users Group

I am new to EXS-24 through the demo that you get from buying logic 5.5

I don't have good documentation on how to properly use the sampler

but I have a question

I loaded up the bosendorfer grand giga and got it to work but it seems that
it's not playing all the different velocity layers that are setup in the
patch. It sounds like it's just playing one layer at every velocity.

is there a way to set exs-24 to play the different velocity layers?
this piano is 8 layers deep and all the layers are loaded 768 zones. I see a
sekect range box that is unchecked and when I check it I see two more boxes
appear that have the velocity data settings. When this is checked are those
settings then activated? I didn't hear a difference.

thanks for any help
Holmes Ives