I want the default setting for users to be "use forum default"

[Michael Morris]

I have 9 styles and forums set to use those styles. I want the default setting for users to be "use forum default," yet still allow them to switch styles if they want. How do I go about doing this? (The vboptions panel doesn't list a "use forum default")

Edit: Let me specify that I know you can set a forum to override the user's choice. However, I don't want that. I want the forum default to be the default style (if that makes any sense). Apparently you can't select "use forum default" from the master vboptions panel (or if you can I didn't see it).