When copying a job, it would be highly attractive to also be able to add the new job to an existing view, so as the developers does not have to do this manually.

I can't imagine, we are the only shop with many teams/projects/etc. using the same Jenkins server, where it is necessary to keep your jobs organised in Views to have easy access to them for tracking of changes/status/etc., as the "All" view contains way too many other jobs.