Yes, that’s it - thanks!!
I suppose it’s not an unreasonable place to put it, but I really think that there needs to be a note by the more “obvious” setting to point out what it does & doesn’t affect.
Actually, you have to create a new profile first, then edit it.
This is a really bad interface feature - you get an ‘edit’ button for the built-in profiles, and it will let you change the settings as much as you like, but you can’t save them!
If the ‘Edit’ button isn’t really going to allow you to properly edit a built-in profile (which must include saving the changes), then it should either be greyed-out or have a different name.
(It manages to grey-out ‘Remove’ - so the basic functionality is already there…)
Or there should be a ‘Save as…’ within the Profile Editor.