Once you reach 20 points of karma, there will be a “Create new article” button in the upper right—same general area as your name and current karma score. To “turn your comment into a top level post” you mainly need to copy and paste, but you should also include some introductory context information, including a link to the top-level-article that inspired yours.
Actually, the “Create new article” button is always there. Posting to Less Wrong proper is disabled until you have 20 karma points, but you can always save draft articles.
Once you reach 20 points of karma, there will be a “Create new article” button in the upper right—same general area as your name and current karma score. To “turn your comment into a top level post” you mainly need to copy and paste, but you should also include some introductory context information, including a link to the top-level-article that inspired yours.
Actually, the “Create new article” button is always there. Posting to Less Wrong proper is disabled until you have 20 karma points, but you can always save draft articles.