This is a MSFS Mobile Companion App in-game panel built with the help of MSFS2020-WebView-Panel by sciontc1 and MSFS Panel Twitch Chat by jopeek.
Extract and copy to Community folder.
Run simultaneously with MSFS Mobile Companion App https://flightsim.to/file/2828/msfs-mobile-companion-app
Note on limitations
Initially I made this in-game panel for my own private use to be able to use MSFS Mobile Companion App to tune ADF frequencies (for my BR Goose Radio Nav mod https://flightsim.to/file/49484/big-radials-jrf-6b-goose-radio-nav) when flying in VR but then decided to share it with the community in case others find it useful too despite its limitations.
While the in-game panel works in general, some buttons are non-functioning making the in-game panel version not as functional as the mobile or web-based version. To iron out these limitations is beyond my skills, so you have been warned :-)