Admin Forum:New Layout and column help

Forums: Admin Central Index → Technical Help → New Layout and column help Wikia's forums are a place for the community to help other members. To contact staff directly or to report bugs, please use Special:Contact.

OK so since the new layout, with the more columns has come out, my wiki used the right and left column tags quite a bit, what replaces those? Because with more columns I'm assuming there's still a way to organise all that, but no idea what the tags are for it.