The missing secret step is to click the top box in the FX popup for the desired track, scroll alll the way down (it is a long way now with the 256 tracks)
and select Input Monitor at the very bottom.
Then use the 4 slots for FX.
Hope it still works, I haven't tried it lately ..

/Hope you can forgive me now
//it IS cumbersome ...


I do not work here, but the benefits are still awesome
Make your sound your own!