Hi, you would need to delete some folders because mainly some interfaces are not working with IL2CPP and WebGL.

Please check the table here for knowing in detail what to delete:

https://doc.realvirtual.io/advanced-topics/supported-platforms

You should find it under "My Assets" - did you checked to find it there?

Please open the Package manager within Unity and import from there - like in my picture above. This should work. If not there might be a firewall issue with your computer.

Are you using a MAC? Can you show me your compiler defines:
https://doc.realvirtual.io/advanced-topics/compiler-defines

You could use standard Unity physical joints to get this working. Or you need to use Drive_Gear or Drive_CAM to relate the position of some slave axis to some master axis. Or you could do a custom script where you implement the relation between the different drives.

If you bought it over the Unity Asset Store you should see it in the PackageManager under MyAssets:

If you purchased it from us directly you can login here:

http://download.realvirtual.io/download

You will find the login information on your invoice (if you did NOT purchased over the Unity Asset Store).