@quinnjudge The Simplicity Studio software is pretty confusing to be fair. You create an account and install Simplicity Studio 5. During install there's an option of which modules you want to install. I just installed the lot as as I couldn't be bothered sifting through all the options. I think possibly the confusion is how to start Z Wave PC Controller from Simplicity Studio. I located it and created a separate shortcut to the Z Wave PC Controller. Mine is at:
C:\SiliconLabs\SimplicityStudio\v5\developer\tools\zwave\pc_controller\ZWaveControllerUI.exe
So using explorer you need to locate ZWaveControllerUI.exe in the Silicon Labs folder and create a desktop shortcut to it (I just deleted the Simplicity Studio shortcut as I don't need it)