NO this can’t be done , you can’t have a vst instrument + a vst effect alias in the same instrument container .
But you can have a renoise instrument + vst effect alias in the same container
I have been in the exact same scenario
Using a vst instrument + a filter vst fx alias ( Cytomic the drop ) which need the same input data to trigger the filter’s envelope
.The only workaroud is to duplicate ttracks and use the fx alias as a new instrument
I asked for this feature but can’t find the topic anymore
Found the topic , needless to say … a lot of people didn’t even understand what I was asking for 