Will I be able to "bind" or otherwise choose to change vst-parameters live into the pattern editor?
Partly. Currently the closest option is to
1) record MIDI controller change as smooth MIDI macro command(setup->MIDI)
2) use MIDI mapping(view->MIDI mapping) to set this MIDI control to edit the correct VST parameter.
First part records the changes to pattern(right channel macro must be set manually) but does not modify the VST parameters, and the second part modifies the VST parameters but doesn't record the change to pattern.