guys its not possible on mobile (which is tablet, ipad, phone, and stuff). You can only do it on pc as of last time the studio was out. get a laptop or pc if you want to do it, I dont think they are gonna add mobile support.
Solution:Search "PM 6:06 Build Mode" in the search bar until you find one game that has a smiler with a hammer and a builder hat with a maze behind it, its like the studio, If the sublevels are not loading, just go to your priv.
