DAQFactory provides some handy features from the graph popup that haven't been discussed yet.  To get to the graph popup, simply right click somewhere on the graph (other than inside a zoom rectangle).  

Markers:

There exist 4 different markers for each graph within DAQFactory.  The two standard markers are used for determining data point values and delta values between the two markers and can be used for ranging functions such as Make NaN and most analysis tools.  The two peak markers enable you to quickly do a trapezoidal integration of a peak and also use a center-of-mass algorithm to take a quick guess at the peak location.

To add any of the markers to a graph, right click close to the data point you would like to place the marker on, select the desired marker from the popup menu and select Add. from its submenu.  To remove a marker, simply right click anywhere on the graph and select Clear from the marker's submenu.  Once a marker is placed, data about the markers position will be displayed along the bottom of the graph.  Peak markers only display their data once both markers are placed.

You can move a marker once its placed using the keyboard.  Make sure the graph with the markers is in focus.  The left and right arrow keys will move Marker A, up and down arrow keys will move Marker B.  Hold down the Ctrl key while pressing the arrow keys to move the peak markers.

You can change which trace the marker is on using the + and - keys on the keypad.  This will affect Marker A.  To change marker B, hold down Shift with + and -.  For the peak markers, the same applies, but you should hold Ctrl as well.