How is the right way for reuse things?

Hi guys, I come from another engine and I’m a little confuse about reuse things in UE4… For example I have a mesh track created with splines and I wanna reuse, seems simple just save as an actor and add in different levels, but if I have a track and a checkpoint system, that have multiples actors for each Checkpoint and another actor for control them…
I’ve tried to add all this in a sub-level to reuse, but it seems that is not the correct way to do that because I have a day and a night levels with this sub-level inside and when I build one of them the illumination ‘Build Data’ from one level overrides another.
Thanks

You’re on the right track ( no pun intended ).

It is possible to bring things in as a sub level, but then move everything to the persistent level and then stop using the sublevel.

Another way would be to make copies of your ‘track layout’ sub level which you can use in various places. You can do that just by duplicating the level file in the content browser.