Simulating with multiple levels

So, I’m a massive noob at UE, but I’ve been loving trying to figure it out!

The situation is that I’ve been trying to replicate a real-life road intersection in UE5 that has undergone construction which has changed the roads, terrain and other vegetation in the area.

I’ve been trying to figure out the best way to have both ‘options’ in the one project (i.e.:

  • option 1 - how the intersection is now, versus
  • option 2 - how it is now that construction is finished.

My idea was to have two levels - basically two copies of the same thing, but one has roads, landscape, assets etc. that match option 1, then the other level with roads, landscape, assets etc. that match option 2 (all in the same location), then toggle streaming method to BP only for the one I didn’t want visible when I hit ‘simulate’ (I have AI traffic systems / fluid etc. that run when I do.).

I’m sure this is very clunky but don’t know of another way to have both sets of assets within the one project that can be toggled on/off on simulate.

I can’t get it to work well, as when I simulate it seems to turn off the Runtime Virtual Texture on one of the levels only, plus I get other errors from powerline generators etc…I feel like I might be breaking the whole thing the more I try to fix it.

I’m at the stage where I’m thinking just to divide it up into two entirely separate projects (option 1 and option 2) and work with each separately. Before I do that, I’m really just looking for suggestions / ideas before I go down that route as I really would like to make them work together.

Any help appreciated!