Source: Starfinder Core Rulebook p.72
As a full action while in contact with your drone, you can reconfigure it into a mechanical drone suit (or a backpack-like apparatus, for the Tiny hover drone) that you can wear. While in this form, the drone can't take any actions or use any of its abilities, but you gain either the drone's flight system mods if you have a hover drone, reactive camouflage (and an invisibility field if your drone has it) if you have a stealth drone, or reductive plating if you have a combat drone. You can end the meld and return the drone to its normal form as a full action. Though it normally acts on your turn just after you, the drone can take no actions on that turn other than transforming back.