William K's multi VST patch and bank management utility is a real tour de force. I can be nice to have even if you don't use the patch management, for things like the built-in arpeggiator, but it becomes indispensable for special cases.

For example, you can use it as a giant patch aggregator, or you can wrap any VSTs that don't include on-board bank and patch management.

I use it to allow The brilliant (in the American sense) Krakli Cygnus to work flawlessly from within Kore 2 (which doesn't add bank load controls to external synths).

Wusik VM gives you the freedom to either work with specific intruments, or ignore the source and just work with the sounds you need!

You could use Wusik VM a hundred different ways, but a good measure of its power is how adaptable it is to your specific requirements.