Player Position on a X time period

I work on a non blind market (Bovespa), and i wonder how to see the amount of stocks the player has bought during the day, or dusring an X period of time.

I havent been able to change times & sales to see player position.

Also, is there a way to change from stock to stock without losing the T&S history ? (on my screen it always starts when you change to the active stock)