Hi,
Hopefully I’m just missing a setting or something, but is it possible to keep the audio (that’s being produced by the VSTi playing) whilst you tweak its parameters? For me, the audio stops if I’m playing from the keyboard and I try to adjust a knob. The only way I can keep it playing is if I tweak whilst there are notes playing from the pattern editor.
thanks 
That or use a MIDI master keyboard.
Having the AT-Keyboard to kick some notes in is a poor-man’s input feature which most DAW developers even do not feel bothered to implement that in their software.
I have used AT keyboard in the past for a very long time to do some get some real nice stuff created, but trust me, investing in a MIDI master keyboard is only a small effort compared to the huge advantage that you gain with it.