I have been looking around a lot and haven't found anything which helps my scenario or thoroughly explains.
I'm trying to use LaTeX on my new, shiny Macbook Pro. I installed TeXStudio and the BasicTeX (https://tug.org/mactex/morepackages.html) smaller installation of MacTeX (because I want to keep as much of my hard drive free as possible for other things) How do I go about installing packages such as chemfig or feynmf or amsmath? (P.S. are amsmath and tikz pre installed?)