In Unreal I'd like to overwrite these .usds inside the red rectangle. Is this possible using Houdini Engine for Unreal or any other method?
1. I've tinkered with sending geo nodes from Houdini to Unreal, adding geometry then sending them back to Houdini using Houdini Engine for Unreal and Node Sync. I now know this plugin doesn't work with sending nodes from Solaris context as such (as explained here https://www.sidefx.com/docs/houdini/unreal/inputs.html).
2. I've also tried collapsing the Solaris network into subnet and then that into a .hda, with errors:
3. I've tried Unreal's USD Importer plugin.
Here's a different network I tried this with(ignore the error exclamation, was hacing issues overwriting files):
And here's how it gets imported when importing Main.usd:
-on the left: the scene structure loads correctly inside the USD Stage window in Unreal
-on the right: only Root and Sky are in the Outliner, no Cameras or Lights (because they're Scopes?)