We wanted to remove it totally, thus currently there is no such input field in OJS 3. But I’ve just realized that it is used/linked to on several other places in the code as well, so that it would probably make sense to have it i.e. to reintroduce it again. I’ll let you know what is the final decision on that, but for now, you can only change it in the DB.
Best,
Bozana