Admin Forum:Monobook Questions

I have a few questions about the Monobook skin. Firstly, how do I customise it? The customization options on the tools customise the New Wikia Skin, but not the Monobook. Secondly, how do I make expandable/collapsible boxes on pages, a bit like the Wikipedia ones. Thanks, Sam (Talk) 17:30, January 19, 2012 (UTC)