adding tracks/characters/etc. too mario kart wii [confused]

[kamakazidreamer]

Alright i keep reading and reading, but it seems that there is either a way to only use riivolution on a wii (not dolphin) and or just replacing the tracks and character textures using wiiscrubbed. But im wanting to know is there a way to use the downloaded tracks and characters to ADD to the mario kart wii .iso that you use on dolphin? Like there is a list of loads of new tracks and new Cups but i want to try and add all of those and still see and use the original ones. Is there any way of doing this or a tutorial and have it work on dolphin after adding these to the original iso?