TC Helicon VoiceLive vocalist like mixer external effect

How to hook TC-Helicon VoiceLive vocalist like an external effect to Soundcraft EFX12 mixer and return only the harmony voices. That's the way to use generate voices for all the vocals in the mixer. Even solo monophonic instruments like saxophone...
00:00 intro
00:33 Connection to PA and test
01:00 What cables we need and what to connect!
01:28 Let's DIY a TRS to XLR cable
01:47 Power supply TC-Helicon
02:42 Let's do the connections
03:31 First test AUX out to TC in and levels
03:35 TC out returns to mixer
04:07 First return signal!
04:42 Lead vocal off!
05:27 Playing with volumes
07:00 Let's play with Delay/Reverb
08:18 Still got a Lead voice? Check the other TC effects chain!
08:49 Here comes the second microphone!
10:06 Second vocal mic in playing the volumes
12:10 Let's add some reverb...
13:43 Back to theory...
14:17 Let's talk AUX1 and TC gain setup
16:45 Using TC like a Delay/Reverb machine only
17:28 Other goodies!
18:00 Don't forget ! Subscribe and have fun!