Not possible, such projects were removed in Crusade.

Think of it this way... civilian facilities for constructing buildings commodities just don't readily manufacture useful military grade materials and components for spaceships.

Basically, in Crusade, you specialize a planet by the buildings you choose and you can't turn your economy on a dime anymore.

Ah I see, OK, so the only 2 options are the Aid Economy' and 'Aid Research projects? Also, in the Tech tree, zero gravity construction shows 'ship construction civilization priority' in the tool tip. What does this mean in practice? seeing as you can't build 'Aid ship construction' projects. 

edit: looks like Tasilos replied before I had a chance to reply lol

I try to specialize a manufacturing planet by building around the space elevator. It adds +1 to both social construction and ship production. Adjacency bonuses increase this by 1 per level. A deep core mine or starport will only add social production or ship production (even when they level up). As such, I consider space elevator more valuable than a deep core mine or starport.

I should note that there are other projects besides aid economy or research. There is also train legion, station garrison, recruit spy, and even recruit citizen. You need a military academy on a planet in order to train a legion. You have to research techs to unlock recruit spies and citizens. Recruiting spies and citizens is expensive, so a strong social production is recommended (another reason to focus on the space elevator).

Based on tech research, race  and what you have access to for crusade do this for decent production:

Stage 1 Build your space elevator adjacent to the capitol city. Build your core mine and starport adjacent to the elevator, add a factory adjacent to the space elevator/core mine if possible

Stage 2 Build your space elevator, core mine and starport adjacent to a new city for the +2 bonus to all

Stage 3 Build your space elevator and core mine adjacent to the new city and a fusion plant (or any +2 all con bldg)

If you have a land tile with +2/3 bonuses, always put the elevator on it and build the other around that.

For crusade there is no "Aid ship construction", what you have now is (manage shipyard + add more sponsors) as all planets now produce ship construction, whether you use it or not.

All of your shipyards should have 5 sponsors if possible.