drop down box arrow key functionality

an issue i have with discord when I'm chatting with someone compared to typing on any other program. I Don't to have to move my hands to grab my mouse when I'm right clicking most other programs i use have a feature where if the drop down box is up you can navigate it with the arrow keys. i find this extremely useful for spellcheck and just navigating the drop down box during typing. would be great if when the drop down box is on screen i could navigate it with the arrow keys lol i need this so i don't punch a hole in my monitor when I'm trying to chat