I've been trying to assign the modwheel of my midi controller (m-audio oxygen) to Omnisphere, but so far nothing worked, I've tried assigning various channels. Anyone who can help? thanks a lot!
In Fl Studio, you have to use a Midi Out generator which you link to your ModWheel ( make sure you assign the same port number to both Midi Out and Omnisphere.)
For all other automation, choose the "Enable Host Automation " in Omnisphere for whatever parameter/ knob you wish to automate, see what Fl Studio calls it by clicking it again and then search for the link in FL's Current Project/Generators/ Fruity Wrapper Omnisphere browser panel.