TJE1386

Hi, I can not switch between Creative and Survival. Is it possible to start a game in Creative Mode, build some things, then load into that same game in Survival instead to play with friends? I don't know if this makes a difference, but I am on Xbox? Also, Some Suggestion for improvements? In Build Mode, the ability to "Mirror" objects. Namely, the newly added Spiral staircases. Also, there are no "Ceilings". I know you can use floor panels, but then the new FireFly Hanging lights don't hang from the Floor Panels? Only from Roof Panels.