You can manually edit the game.cfg and graphicsconfig.xml files to enable:
This report details the technical significance, origin, and functional status of the "LEGO Universe Client 1.10.64 unpacked." This specific version of the game client represents the final official build released by NetDevil before the game's closure in January 2012. The term "unpacked" refers to the reverse-engineering process where the game's executable files were decompressed and decrypted from their commercial protection. This unpacked state was pivotal in the development of private servers (emulators) and the preservation of the game by the community. lego universe client 1.10 64 unpacked
While natively for Windows, this version is known to work well on Linux and macOS via or virtual machines. Stability: You can manually edit the game