Keep playing combat lab?

Hello me and my friend have been playing the battle laboratory at Fortnite in the last few days and are just doing a little nonsense. We build things, etc. And don't always want to start from scratch. So that we lose our built things. Is it possible to save a game / island and then continue playing later? And if so, how do you do that? And what's up with the timer? What happens when the timer ends? Can you turn it off?

Unfortunately you can no longer play Combat Laboratory.

But it works

Only playground has not existed for 2 years.

If you want to do things, you can maybe just build it in creative, as long as it works, because it is saved there. But on your other question, you can't erase the worlds and after time you will be thrown from the island and teleported to the lobby. You can't turn this off unless you're doing things in creative mode.

Hope I could help.

OK, it's a shame because we want the map and not just the small field like in the creative mode