It would be neat to have some sort of marker in the dropdown list of systems in the mineral search view to indicate which systems contain either normal or populated colonies. It could be either color or a '(C)' after the system's name. That way it will be much easier to quickly find and search those systems which are of interest. Especially since remembering which Luyten I have a colony in can be a bit of a pain.
I'm surprised there isn't -- certainly VB Aurora's mineral report differentiated between bodies with colonies an those without.
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Re Luyten:
Turn off Known Stars. One of my three biggest complaints about it is the proliferation of a small handful of names. Fifteen Wolfs and twelve Glieses, etc.
Use a naming theme for systems -- not for 'realism' within your fiction but for information control. Use Roman for everything through the first JP, French for the second JP chain, and Spanish for the third, or something like that. A coherent naming theme tells you
where each system is if done right.