How can Unity save an object after a stop?

Question

Game development

Good afternoon,
When you start the game in the editor, objects (map) are generated, I would like the objects to remain in the editor after the game is stopped.

Answer 1

you can drag them into the Project in the editor.
thus get a prefab from the object .. you can then use it.
but in general, Play (runtime) for the most part works like a Sandbox. worked and reset to its original state.