Explain how to burn 4K movie files onto a Blu ray Disc on Mac using Toast 17 Pro and Compressor

I need step by step instructions on how to to burn my 4k UHD movies onto a blank Blu ray disc using the following tools: -Pioneer Blu Ray Burner (BDR-XD05B) -iMac running Mojave -Compressor -Toast 17 Pro by Roxio I know Im supposed to create a disc image with Compressor and then use Toast to burn that onto a blank blu ray disc however Im not sure how to make the menu and which settings to use for encoding etc.