and if it does then how do i connect it?
Cura is one of the built in slicers in flux studio. If you just want it because of the slicer part you dont have to use the extern cura. If you want to use the extern cura you have to export the gcode file and import it to flux studio as far as i know.
ok, but it doesnt have as many settings as cura
there are the expert settings. but i havent used cure so i dont know which settings are different. as i said if you want to use cura you just have to export the gcode file in cura and import that to flux studio