Thank you guys for reply.
@rd2rk For point 1) pedals before HX input are true Bypass
I try to explain better.
I want to use my real amp connected to real CAB (and with a RedBox to send the signal to the fOH) with HX just for Input/Send&Return effects (delays, reverbs, drives, compressors, etc)..this is not a problem by creating a Patch with settings for 4CM.
In some situation, i might need to not use real amp (so full HX stomp sound to FOH and on my monitor for reference back from FOH mixer) or connect to a Head poweramp available at the venue or jusy put an overdrive and some effect (from HX of course) in from of real amp connected to real cab and with a real mic etc.
I want to do all of this things without disconnecting and change cabling to HX already connected.
Yesterday i was able to do something but cannot reply because my post was on approving pending.
Actually i have HX stomp cabled on pedalboard in 4CM configuration. From HX, i go into a Patchbay where put all my cables to and from Real Amp.
I've created a Patch dedicated to 4CM.
So flow is
Guitar -> Buffer ->Tuner -> HX L Input
--> Drive Block
--> FX Send/Return Block -> HX Send -> Patchbay -> Real Amp INPUT
From REAL AMP SEND -> Patchbay ->HX RETURN L
--> Delay Block -> Main Output Block -> HX L Main Output -> Patch Bay -> Return of the REAL AMP
After searching and see some video on YouTube, i've create another Patch, without change anything on physical cabling on HX and real amp(just take off the Send/Return cable on the real amp).
On new patch, put a Drive Block and a Send Block L into the B signal chain (in 4CM the HX send is always connected to the INPUNT of the real amp).
I've to check if i do some settings here because now i don't remember.
So the last action is to create a patch with all sound coming from HX using the R output connected to a D.I. Box (because is not balanced) and to the FOH and play with other routing things.
Thank you.
Daniele