I have been looking for a one-hand wall fitting. Grohe Concetto single lever kitchen mixer, DN 15, 32663 001 seems to be the only one there. If the outlet is too high, then you can this by extending "aerator 11005198 faucet hose with ball joint and water-saving lamps with reduction M22 x M24, chromed," by which it is possible for the ball joint to direct the beam to the rear. Unfortunately I could not order from Amazon, because it would have arrived too late. The eccentric adjusts to 16cm distance at 17cm I had to use the old and the old roses.
If anyone knows another one-hand wall fitting, I'd appreciate a comment.