Hints and tooltips for shortcuts

New users of xmage may not know about the shortcuts available to them. With an enhancement to the client, it could count the number of times a player does a given action (such as choose "yes" for a may ability, or pass priority on a given trigger, or order some triggers a certain way on the stack) and when a threshold is reached, show a tooltip that tells the user about options to auto-select the same option in the future. Maybe this tooltip is not shown, but instead a small symbol next to the button appears, and the text is shown to the user when they hover over the symbol.

Ideally this feature would also allow users to set up the auto-choose option after having done so automatically, with the tooltip/symbol disappearing when the user:

1. Dismisses the tooltip
2. Advances the game to a certain game state (such as playing a new card, activating a new ability or moving to a new phase)