more Alert Time functionality

thank you for the alert times, they make my life a lot easier!

i was wondering if these features could be added:

• count down past 0 into negative numbers
• visually highlight the currently counting number, with a whole column of alert times it's hard to see at first glance which number is actually doing the countdown. maybe have a grey tint in the cell background?
• it's hard to tell at first glance which are long times and which are short, the difference between times with minutes:seconds and seconds.tenths isn't quickly visible. maybe have the seconds.tenths displayed as 0:seconds while static and only show the tenths when the time is actually counting down?
• during countdown the [Display Timing] button (half moon Time button) should show the full time, as it does with other countdowns in the PSD
• when re-learning a time the red count-up replaces the time that's already been there. could the previous time be shown in parentheses so it's easier to compare the current to the previous time?

thank you.