Change List Component Date
You can change date and time for an existing historical custom symbol list.
Access from the Manage Custom Symbol Lists dialog and click Edit Date. The Change List Component Date dialog is displayed.
Original As of Date & Time 
Contains the current date and time for the selected historic custom symbol list.
New As of Date & Time
Displays the latest date and time entered for the selected historic custom symbol list. Using this feature will provide you with multiple historical components with each of it's own date & time.
- Select the new date using the calendar.
- Enter the new time by typing it or use the
arrows.
Click OK to apply changes or Cancel to exit without any changes.