Trigger Different Midi Channels Within A Track Options

[soehnk]

Hello,
I currently own Miroslav Philharmonik sound library and within this app there are multiple articulations of an instrument available on different midi channels. I would like to trigger different midi channels within a track so say, I have 4 different string instrument articulations such as legato, pizzicato, staccato, portato for instance and I want to trigger certain ones--one at a time--within a single track as this is how a single instrument behaves. I have my doubts about Garageband but maybe Logic Express or some other software?

Thanks,

Keith