When I do research one goal I often have is to miniaturize ship components so that I can get to the point where I can create constructors, freightors, and transports which fit on a small and eventually a tiny ship hull.
In this beta version of Galactic Civ III, the miniaturisation tech is spread out amongst different things. Making engines, smaller, increasing hull capacity, reducing size of specific components. There is no way to see it as a "Miniaturization tech tree" so that I can easily find the tech that will take me there.
Similarly, if my goal is to increase my manufacturing or my research capability faster, there should be a way to group the tech to research that will get me there faster. Tech that increases these are in different tech trees.