martin
40
Thank you so much, @peternlewis.
JavaScript works after running these commands in the Terminal:
defaults write com.stairways.keyboardmaestro.engine AppleScriptGoogleChromeBundleID -string "com.microsoft.edgemac"
defaults write com.stairways.keyboardmaestro.engine BrowserGoogleChromeName -string "Microsoft Edge"
It looks promising.