Ok, maybe a video can help you to understand my problem.
This video shows my horizontal problem:
https://drive.google.com/file/d/1iwt...usp=drive_link
I have this problem for the Nestler n°20 "Kiel", and exactly the same problem for including azimuth circles, this :
It's exactly the same problem of moving
only horizontal.
A little help would be welcome !!