AR MKII FX tracking into Overbridge

Hi,

So I know that the FX are added to the signal chain after it goes from the unit to Overbridge, and I’ve read on this forum that you can record the mains output that will have the FX on them as a separate track, but how do you do this? I tried recording the mains track but the FX weren’t on there so I must be doing something wrong.
The FX, especially the delay, is to me a crucial part of a lot of my beats and I really don’t want to have to use DAW FX to recreate what I have programmed on the unit, which won’t really sound the same anyway. If it helps I’m using Studio One.