Object Saver

Object Savers allows creators to make objects that have their current logic state and position persist over sessions. This allows players to make for example destroyed objects to not respawn when the level is replayed, or to make logic not reset to its original state after replaying.

An object saver does not make emitted objects persist over sessions, however the object that will emit the objects will persist so you can make objects appear permanently after the emitter is first triggered.