Do you have a Javascript API for that midi controller? Take a look at the example plugins, which will show you how to create actions, expressions, and conditions. My guess would be that you should start mapping actions and expressions to the things the API allows you to do.
Thanks for helping bladedpenguin this is part of the reply i got back after asking if there was an API " Unfortunately however we do not have this type of documentation available.
We have previously published programmers reference guides for other products within the Launch range, these are available on the Novation website, but there is no such documentation relating to the Launchkey Mini. "
would it be much different from the plug-in for the gamepad ?