The title says it all. Instead of having pre-terrain islands in creative hub slots. Why not have each slot island customizable?

Example, when the player goes to an island for the first time. The game will prompt what terrain they want to use: block, black glass, snow, beach, etc.

Terrain can only be choose at island start and changed right after island reset.

To avoid issues with already built player islands. New accounts are able to choose their terrain, while those before this was implemented all have their terrains already set as current.

Im suggesting this since I prefer building on the block since I usually end up building a sky base, held up by pillars, with the actual map on top. And there's only 2 flat blocks.