Your comments

Yes, I did; they are very useful. When you are editing in landscpae, the keyboard already takes a lot of space; then if you activate the navigation wheel, it takes about 23 percent of the remaining horizontal space left.
I’d appreciate it. As for the complexity issue (for users) you raised, I personally don’t think people who are dealing with sophistications of a language code would have a hard time tailoring that potential option to their needs. But of course, it’s your call :-)
The problem with navigation wheel is that it blocks the user’s sight; the ”go to the line start/end” command is very useful on the other hand.

Would it be possible to give users the freedom to choose between {no-auto-line-wrap + zooming} and {navigational convenience}?