Thanks for the replies.
It is not that I have a problem on how to handle the caliper e.g. in case of a brake disk change or similar.
It was rather the idea to have a neet quick handling possibility e.g. when you want to effectuate longer/major work on the front axle.
I've seen, that there is a kit from
elephant racing, that is fixed rear to the brake disk cover (I guess)
With this you can ignore/cut off the fix on the strut and in case off need, you just unscrew the two bolts and the brake line is "free".
But the price is high...