Hi all, I found the Preview ver4.27 can be installed on Rhino 7 and it actually works.
You can use both functions on Toolbar or Export Selected.
Here is the link page:
Though in UE5 I got a lot of problems importing the model which contains too many blocks,
the datasmith file works well for UE4.26,
so at least I can import it to UE4 and then convert the project to UE5.
btw in UE5 it seems there’s an option for import .3dm directly with datasmith plugin,
Haven’t got the time to test that function tho.