There are several things out there, I’m surprised your browser search feature didn’t find anything, maybe a typo ?
I’m not sure you meant ‘static models’, presumeably you mean non tiled ? If you’re referring to terrain , static isn’t a word I"d use to describe that.
WM ( worldmachine) can export ‘single’ terrains with no tiling, or tiled worlds which can be 20sq km’s , etc, which then import into the ‘world composition’ dialog in unreal editor, and there is a whole article about that on the wiki, as well there are tutorials on youtube and no doubt elsewhere showing how this can be done.
That should start you out on the right foot.
Cheers
nl