What would be great for the conversion is allow us to use our own command line conversion command (for advanced users only). For instance, I started using HandBrakeCLI to do my automated conversions because it was super easy to include all the closed captions. So if we could use the JRiver engine to select a file for conversion, but actually specify the command to use, (including whether it was FFMPWG, NVENC64, HandBrakeCLI, etc), it would give advanced users way more flexibility.