From the original on Curse:
I got fed up placing MechJeb and Engineer parts on my vessels so I wrote a small mod using ModuleManager to automatically include a MechJeb computer, Flight Engineer and Build Engineer on any craft that includes a probe core or a command module.
It's quite a simple mod so if you are familiar with ModuleManager you can easily adapt it to add other modules to your crafts, e.g. Protractor.
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