I have a Flex 6400, Elecraft KPA500 and KAT500, and an all Mac household. I have one Windows VM that I use with SmartSDR to set up the radio, USB cables, etc. Otherwise, I use DogparkSDR as a Flex client. It all works great, except I can't power on/off the amp or change it from standby/operate unless I'm in the shack. The remote control software from Elecraft only supports Windows. I could use their utility software with a serial-to-ethernet converter, but I can't find any converters that provide virtual serial port drivers for MacOS. Has anyone figured out how to power on/off and toggle from stdby/operate remotely with Mac computers? Thanks!