Accessibility for kb/m

tab selects sections of the screen, separated by guild list, channel list, message area, user list, button bar
and/or have it where alt+letter focuses part of the screen, like alt+g selects guilds, alt+p selects pins and the other buttons in that group, etc (see: wordpad)

also middle click button in scrollable area makes it scroll by moving mouse up/down (see: wordpad)