Unlike Toolbox 3, Toolbox 4 is math heavy and incredibly detailed, but yoou can do whatever you want, at the price of detailed calculations. You can create:

        Tech Level 7, 8, 9 and 10 ships - not just TL 10

        Arbitrary sized ships - not limited to certain hull sizes

        Armed military ships - not limited to just unarmed civilian ships

        Matter-Antimatter Drives - for enormous power

        Atomic space drives like Orion and Nerva types