1. Adjust the (horizontal) zoom and vertical size with the buttons below, and then choose to delete or add detected peaks in the appropriate trace.
2. You can zoom into a selection by highlighting (click and drag) and return to normal by double clicking (away from the traces - and be patient as zooms and rescalings can be slow)
3. Click on the graph (near the trace) to add or delete peaks - but you do not need to be too exact as it will select the nearest peak to delete or it will add a peak at the nearest local maximum of the trace. The Clear button will clear all peaks identified so far.
4. The command you need to run next is displayed at the bottom. Note that nothing will be displayed on this graph here - just cut and paste the command and run it in the terminal.

Plot Resizing:

Displayed plots:   Cardiac Respiratory