https://mikeyoung44.itch.io/spacefreighter/devlog/392183/new-ship-june-release <- controls list (finally)

Movement and Camera

• WA(S)D = Move (double-tap W to boost. S does not reverse... yet)
• Space + W = Climb
• Command/Left Alt +W = Dive
• P = Furl/unfurl sails (mechanic is work in progress)
• Middle mouse + drag = Move camera
• Left click on any object, then press R = focus camera on object (can be used to look at and follow enemy ships or even projectiles)
• F = focus camera on flagship
• Esc = detach camera and fly around with it (mainly used for debugging at this point)

Combat

• Shift = Lock on to target (required to fire weapons)
• Right-click = Fire all weapons in range. Reload bars will appear as weapons reload.
• Left-click on pickups in inventory = use consumable (currently only have a health boost - pick up the floating boxes to get it)

Fleet Commands

• 1 = Attack closest enemies
• 2 = Attack enemy base (base is not really in game - currently it's an invisible target)
• 3 = Fall back to friendly base (not really in game yet either)
• 4 = Assume wedge formation
• 5 = Assume column formation

(Note: direct  orders to individual friendly ships aren't  working yet, but you can still give these fleet-wide commands)