As i'm currently working on changes to allow more visitors to your space stations, I've added a new research item to unlock, under the security section - door access. When this is researched, you get the option to set doors and airlocks to only allow your crew to pass. This gives you the ability to restrict areas of your station from visitors, which will be useful as visitors gain more behaviours (there will be more negatives when visitors are near your production items). The door access research also gives you a bonus in that pirates will no longer be able to open doors automatically, and will have to breakdown doors as they do with airlocks. Patch notes:-

• Add Door Access to research (Security).
• Door/Airlock now have crew access setting.
• Visitors now check new visitor map (updated with door/airlocks)
• Pirates now treat doors as airlocks if door access researched.
• Fix: Repair bay dock spots, not checking corners 2 spots for same ship id.
• Fix: Ship angle not correct on repair bay dock approach.