If you want to do manual backtesting, the only way I know is to hold down the shift key and then press the right scroll button. The problem with this is that on the far right edge of the screen you can always see the where the trade is going for the next day.

The only way I've found to get around this is to load a specific security using the "between dates" option which will only show the data to the end date.

Is there another way to do it?