With your Parallels open your program files on windows (I'm assuming you use Coherence so that your Mac and your windows partition is shared) then Program files folder and in there you should see The Sims 4 folder in which S4S uses to identify game files, copy that And then you'll travel to Resources folder and search for drive_c folder (if not a drive c folder it might be trans gaming folder if neither search through with next step) Right click your Sims 4 application on your Mac and show package contents
I use Sims4Studio with my Mac and Parallels and its working just fine.
