| · | Select the zoom area by moving the mouse pointer to the beginning of the desired profile section.
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| · | Click and hold down the left mouse button while dragging the pointer to the ending point of the desired zoom area. Once the ending point is reached, release the left mouse button. The area to be zoomed is highlighted in black.
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| · | The graph area automatically changes to display the desired profile section for all displayed profiles.
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| · | Once in a "zoomed" state, click on either the  or  button to resume normal mode viewing.
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