B01LXKZ3F6 Nektar Impact LX49+ 49 Key Keyboard MIDI controller with built in DAW integration

Use Studio One learn to map any plugin
Fader 9 control VSTi Instruments main volume
Faders 5-8 commonly mapped to filter ADSR envelope
Faders 1-4 commonly mapped to amp ADSR envelope
The User page maps pots to additional useful parameters