You can achieve the moving forward and backward much more convenient by moving your mouse cursor over region A (see Figure 6.18) until the cursor changes to a palm cursor then click and hold it to drag forward or backward.
Alternatively, you can also use keyboard shortcut keys to activate the same functions. However, you will need to click once on the chart area so that the shortcutkeys can be registered. For more shortcuts, please see Appendix 11.