WD UpMix for Dolby Atmos

Hi .... I'd like to try this plugin ... I have a Sony AVR 790 in a 5.1.2 arrangement ... Sounds great. I use a ASUS x570-P mobo.
I'd like to use the WD UpMix VST3 on my videos inside Davinci or Cubase or Nuendo ...
and then ... uhm a Dolby Master file is created and then a mp4 video file is ... about to be created.
I'd to convert the family Christmas videos. They sound good in 5.1 but I'd love to hear
them with ATMOS height channels added in.
I can kind of see the plugin working in Audition and Sound Forge but they wont create atmos height channels.
Can anybody show me just the simple way to actually just ... load the video ...
setup the bus / channels and use the WD UPMix to create an awesome sounding video.