I remember there was a command like holding a few keys at the same time to copy a bonus name and send it in chat highlighted and people can click on it, helpful to tell them what bonus you will take.
Can anyone tell me the command?

ctrl+click

Hold Control key and left click on the Bonus. It works for the territory, bonus and the mega-bonus.

On Macintosh, use Cmd+Left Click on the bonus you want to link!

shift + click to have it in public chat (if there is a team chat)