"You could add them to a settings dialog but then features risk being missed by non-techie users." Well, at least in that case the addition is a strict improve

"You could add them to a settings dialog but then features risk being missed by non-techie users." Well, at least in that case the addition is a strict improvement: some users will find it useful, and some won't, but no one will find it harmful. With any other solution that exposes the functionality, there's the possibility that some users will find it confusing or offputting.