The view of the spectra can be scrolled around or scaled using the controls in the menu or by using the various mouse and keyboard shortcuts:

Viewer Controls

Action	Command
Zoom In/Out X Axis	Scroll wheel
Zoom In/Out Y Axis	Option/Alt Key + Scroll wheel
Zoom In on Area	Option/Alt Key + Click and Drag around area
Zoom Out Completely	Option/Alt Key + Click once anywhere on viewer
Move Around	Click and Drag

Zoombox Controls (box in upper left corner)

Action	Command
Move Around	Click and Drag grey selection box
Zoom In on Area	Click on unselected region and drag around new selection
Zoom Out Completely	Click once anywhere in unselected region
Alter Zoomed Area	Click and Drag on sides of grey selection box

Troubleshooting

If the viewer is not showing any spectra or is slow, try updating to the latest version of your browser. We have found that Google Chrome is the fastest.