Using Mass Spectrometers
 Extracting a Temporary Mass Trace
 Extracting a Temporary Mass Trace
Before you extract a Mass Trace (see  Extracting Mass Traces Afterward), you can create it temporarily by just clicking the mouse. The following options are available:
 Extracting Mass Traces Afterward), you can create it temporarily by just clicking the mouse. The following options are available:
Using the mouse pointer
| Cursor | Activated by | What it does | 
| 
 | Placing the pointer near a mass data point or a mass needle. | A temporary MS channel is extracted for the current mass. An existing temporary MS channel will be overwritten. | 
| 
 | Placing the pointer near a mass data point or a mass needle and simultaneously pressing the SHIFT key. | A temporary MS channel is extracted for the current mass. The new channel will overlay existing temporary MS channels. | 
| 
 | Placing the pointer between two mass range delimiters. | This action moves the mass range as desired. | 
| 
 | Placing the pointer on or near a mass range delimiter. | This action moves the left or right delimiter in the desired direction. | 
On the context menu
To extract a mass trace, click the corresponding mass or right-click the mass range. On the context menu, select Extract Temporary Mass Trace and define the corresponding parameters in the dialog box:
