I have narrowed down my selections of the predesigned layouts but I like some features of certains layouts and dislike other features. Is it possible to mix and match these features. For example, in the Purist layout I like everything about it except the icons used to scroll through images. I do not want to have the provided -+ buttons and instead would rather simple arrows in sites like the Icon. Another example is they layout of the thumbnails. I would prefer to have the grid layout instead of the list that slided in and out on the bottom of the page. Can this be swapped as well?