Studio4 & JABB ('Jazz&Big Band' VST instrument) )

Hi. I’m trying to add articulation, pitch bend etc to already recorded JABB (a VST instrument) midi tracks but the mod and pitch wheels have no effect. I’m a newbie to CCs etc generally and I’m not even sure I’ve got my keyboard linked fully to cubase. (But I can record from the keyboard ok.) Can anybody help me with setup, or maybe point me to a good tutorial? The cubase and jabb manuals don’t help at all. Thanks

Do the pitch and mod wheels work with other VTSi?