Editorship (noun)

1. The position or office of an editor.
2. The management of an editorial department.
3. The responsibility of editing a publication or document.

Origin:

From the english word "editor" and "-ship" which is a suffix indicating the office or position of an editor.

Examples:

1. He was offered an editorship at a prestigious publishing house.
2. She was appointed to the editorship of the school's newspaper.
3. The editorship of the journal was passed on to a new editor.
4. He was proud of his editorship in the organization.
5. The magazine's editorship had been in the same family for generations.