Hi
Libraries can indeed be included although I've only done so with a Pico. Once you have downloaded your library(s)
In Project Options tick the box "Use Supplementary Code" then click on "Supplementary Code"
In "Definitions and function declarations" add the path to your library(s).
You will need to use C-Code icons to refer to whatever functionality your library(s) provides, but I'm probably not the best to advise on using "C"
Regards