How can I use different presets on the same instrument?

I use Session Horns Pro with Kontakt Played in Mainstage 3.

You can choose different presets within Session Horns without having to load additional samples and take up more memory.

How can I create different patches that use the changes of Session Horn Patches without duplicating the samples in Kontakt?

If I copy the channel strip and 'Paste as alias" changes made to one copy are the same as the alias. It seems there must be a way to "Automate" controls in an alias that is unique to each patch. I could also use to do this on instruments like Vintage Clav and Vintage B3 where I don't want to create duplicate instances of CPU hungry plug ins just to use different presets in different patches.

Thanks in advance to anyone out there who knows of a workaround!

Larry Ketchell