.LP
The number of data points that are displayed may be changed by entering a 
beginning data point, an ending data point, and the step size desired.  The
user may select an appropriate combination to achieve the desired result. After
entering the step size, beginning and ending data points, the user must click
on the "Change Data Sampling" action button to complete the change of displayed
data points.  If more than one plot is displayed, a list form will
pop up. The user must select all plots that the new data windowing and
subsampling is to be applied to. If only one plot exists, the 
windowing/subsampling parameters will automatically be applied.
.IP "Step Size"
The "Step Size" option specifies how the data should be subsampled
between the begin point and the end point. The default value is 1, every
point.
.IP "Begin Point"
The "Begin Point" specifies the begin point of the data to plot. That is
what data point number to begin with. If the "Begin Point" is set to
0, then the "end point" is ignored and all data points are used.
.IP "End Point"
The "End Point" specifies the end point of the data to plot. That is
what data point number to end with. If the "End Point" is set to
0, then the last data point in the file is used as the end point.
