[Elements with adjustable sizes]

I think it would add a great deal of flexibility if certain elements had adjustable lengths and widths 

For instances tables that you can make longer or benches you can add or remove seats,  windows are another that could benefit from this. 

It would essentially remove the need to have several different sizes of things.

 

[Maintenance Cost/Service Life]

I love this idea, it will add an interesting consideration to ship design.  It would make carriers and mother-ships more useful as well.

[In Game Mechanics]

maybe some kind of modular element system, so you can attach two doors, or door segments, together to make a bigger door 

[In Game Mechanics]

Are things like rotors, pistons,  tracks for lifts or doors,  you know Mechanisms planed?
 

I don't think Hanger doors as elements would work as it would restrict the freedom of ship sizes.

 

It would also be interesting to craft with fold in wings and other space saving features.

[Removal of monthly fee with a solution.]

#thefirstrule