World Partition with PCG

I am creating a 4km sq map on an existing level, I have added alot of modeled contents and adding PCG forest now…It lags when I add full of foliage.
I tried converting to World Partition but get alot of red errors. Is there a workaround?

Have you tried removing the PCG forrest before converting to WP project?

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I.e. clicking the Cleanup button in the PCGVolume connected to your Forrest. > Save map > perform the conversion.

I was able to convert…the error was because there were multiple maps referencing each other. I deleted all unwanted maps.

Another thing is…Does UE5 support multiple PCG volumes? Such as is it better to have one single PCG volume or multiple for the 4km sq?