Dear Stripcycle,
I’m really very grateful for your great detailed answer. 
Fortunately I could completed my midi issue this Friday evening after a short break to this topic.
I am really happy know, think you could imagine and I can use and enjoy now this wonderful sounds of this incredible machine.
I guess there are different ways to handle this issues but for me it is in order now.
The interesting thing is that I let in the audio routing of the A4 the routes to the main active and also the FX.
Here is a pic of my setup, I am not sure if it would be clear for you with only this screenshot but who knows.
I will definitely try out your method in an blank ableton project next weekend.
Also thanks again to all other guys here that try to help me, I appreciate that.
Best musical regards from Germany,
Marc