Current problem
To select messages to interact with without a mouse, currently you press tab -> navigate with the arrow keys -> then press the button corresponding to the keybind you have set.
This takes too many key presses in my opinion to be worth it over just pressing the selection menu on a given message.
Proposed change
Currently, you can change channels using alt + arrow keys.
My proposed change is to do the same for selecting messages, but rather using ctrl + arrow keys, as as I understand it this combo is not yet used, and it's what I'm used to.
Example