A heat-map feature for individual stocks and ETFs would be the first tab I checked.
Allen Mayfield shared this idea
Alan Enrikaitis commented
the only heat map you need is the Vector Vest Color Guard
Ramadas Menon commented
Alan, FINVIZ.COM already has S&P 500 and other heat maps on their homepage among other things. If VV doesn't implement this, you can view them intra day (with a delay) for free.
Allen Mayfield commented