I want to be able to set up my ronin-SC to control my Sony A7r III and utilize my iphone as an external monitor but I can't seem to get the settings right. not sure if it's an incamera setting im screwing up or if this is just not possible. please help!

Hi Niko, you can use Imaging Edge Mobile/PlayMemories Mobile app to achieve remote control on your phone. Make sure the app is already connected with your Sony A7Riii. Please check https://support.d-imaging.sony.co.jp/app/iemobile/en/ for setting the remote control, thanks!