Reply to Axiom 61 mapping for vsts

Does anyone know how I could use my Axiom 61 and map different vst synths to it in Logic?

For example, when im working on a track, I can just browse through different synths (omnisphere, predator, Nexus, etc..) and each time I load a new one, my controller has the mapping for the knobs on each one of those individual synths..

making sense here??

thx