Zoom In:
Draw a box from left to right while holding the left mouse.
Zoom Out:
Draw a box from right to left while holding the left mouse.
Scroll Graphics:
Move mouse left or right while holding the right mouse.
Insert Size:
Right click at the top chart and choose Insert Size.
Delete Size:
Right click at the top chart and choose Delete Size.
Edit Size:
Right click at the top chart and choose Edit size.
Browse Sample:
Click at the left-bottom sample list, then use Up/Down arrow keys to browse the samples one by one.