The experiment has been running for a few months yes, but like I said, the feature to add or remove cubelets is new for version 3.0, released on April 17th. Che

The experiment has been running for a few months yes, but like I said, the feature to add or remove cubelets is new for version 3.0, released on April 17th. Check the Eurogamer article I linked to (also linked in the original article).