Another trick that may assist you:
Once you find the Customer and you have the list of transactions in the grid below that just goes on and on (as you indicate), click once in the grid.
At this point you can now press the END-key on your keyboard to quickly get to the very bottom of the grid, where you may see the most current transactions. (Likewise, press the Home-key to get to the top of the screen).
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Samuel Kopstick
S Kopstick & Associates Inc
Toronto, ON