model options

since weve got the new model for the moonpool dock, we have model options for the moon pool and windows already, would it be possible to make it so we can choose between new and old models for the dock? with railings and longer or without railings and shorter? both models already excist so half the works already done… could also add the railings to the moonpool options so its plain, safty striped or plain with railings and striped with railings.