Alpha 2.1 has also made some improvements to collision detection, added the ability to “physicalize” several constructs at the same time like piloting a smaller ship out of a larger ship while the larger ship continues its trajectory, and improved piloting overall.

Content retrieved from: https://massivelyop.com/2019/10/30/dual-universe-alpha-2-1-will-let-players-create-space-stations-thanks-to-space-core-units/.