Greater chat clear timer (>10s) and/or "wipe chat" function for in-game overlay.
Right now it seems the auto-clear for chat maxes out at 10s. Sometimes that's just not enough time to read a message, especially right in the middle of the action. There is no "wipe" function, so if one were to choose not to auto-clear, the messages eventually take up an entire third of the screen. Setting a hotkey that toggles chat in the overlay "works", but if you mess up and don't press it exactly twice (to clear and then reactivate it), you might lose yourself as to whether the chat is on or off and that's an even bigger mess.
Ideally we'd have a wider interval for auto-clear rather than just 1-10s. That would be my request. If that's not possible (not sure why it wouldn't be, however), then a "wipe overlay chat" hotkey would do the trick.
Thanks.