To all the Elektronauts struggling to get Overbridge plug-in with all inputs/outputs and DAW sync working properly in FL Studio, here are a short guide for you:
Don’t use Overbridge VST as a generator, instead add it as a mixer track effect. If you’re unable to add it as an effect, you need to manually change the plugins preferences in the plug-in manager so that it’s tagged as an effect instead of generator (rescan without automatic verification may be needed).
The inputs and outputs are accessed from the Overbridge VST wrapper settings (under ‘Processing’, see ‘Connections’). To route the individual outputs properly in the ‘Connections’ tab, you need to first sidechain the Overbridge mixer track to as many other mixer tracks as you are about to use. The same applies to Overbridge inputs; just sidechain the desired track to Overbridge mixer track and the set the VST wrapper connection settings accordingly.
That’s it, everything should work well now!