Make the station Zlevel accessible from the derelict one.

[Erev]

I like the idea of being able to access the station from the derelict Z-level but it should be done in such a way as to avoid bodies coming back.

All we really need, I think, is to have something that tracks how many times a specman goes 'North', 'South', 'East', and 'West' and when the x and y of it reaches '0' you are back at the station. That way thrown bodies just keep heading the direction they were going, racking up higher and higher x and y coords instead of hitting the station. They remain 'in play' and recoverable that way too.