Low and High Off Peak Positions
To move an off-peak (background) position for the next standard or unknown acquisition, click either the Low or High off-peak button. Position the cursor over the graph (note that the cursor changes to a cross-hair) and click where it is desired that the new off-peak position be located.
The on-peak marker and label is shown in light blue, the current off-peak markers and labels in bright green and the original off-peak markers and labels are shown in magenta.
If the current sample contains no data, the off-peak position is updated for that sample, otherwise a warning is given that the off-peak position selected will be applied to the next new sample that is created.
The new off-peak position is shown in yellow, while the original off-peak position for the displayed sample is shown in purple.