Other than my cash accounts, my assets are heavily invested in an active 401(k) account, a personal rollover IRA account and my spouse's IRA account. All of these update their share prices in the evening, though the 401(k) updates do not post until the following morning.
So, when I go to the Investing tab, the Dashboard view always shows Today's Change $0.00 (0.00%). We need to be able to choose a previous date (or simply "yesterday") in the dashboard view in order to make this useful.
On the other hand, switching to Portfolio view permits changing the date, and the grand totals at the bottom of the view update accordingly including the current Market Value and the Day Gain/Loss, however it fails to show the overall Percent Gain/Loss thereby forcing me to calculate the value manually.