Guild Wars 2

With the addition of the Daily tracker, it reminded me of an idea I’ve had since Guild Wars 1.
Would it be possible to add tracking of any achievement you want?
The idea is that ArenaNet would add a checkbox to the side of the achievement tracks in the hero panel. When checked, the achievement track would then appear in the top left corner in much the same way that Dailies are currently tracked.

Thinking more about this, could it be also extended to stat tracking?
At the moment if I want to see what differences equipment and skills make to my Precision for example, I have to open the Hero window, obscuring a significant part of my view portal.
Having stats of your choice tracked in a similar way to that outlined above would really help.