You can clear all historical data stored for symbol.
To clear data for a Symbol
- Create a chart window. See Creating a Chart Window.
- Right-click on the newly created window and select Symbol Properties.
Lookup in the Symbol Properties
- In the Symbol Lookup
window select required Data Provider and select Symbol for which you want to clear
- Press Clear Data button at the bottom of the Symbol Lookup
window and click Yes in the clear data confirmation dialog.