In
the Search menu click on Peak on Screen. This moves the data
cursor
to the highest waveform peak displayed on the screen in a selected
channel.
OR
Double-click
the left mouse button anywhere in the bottom
annotation line.
This will also move the cursor to the highest peak displayed on the screen
in a selected channel.
Choose
Search Peak on Screen (ALT, S, K).
This also moves the cursor to the highest waveform peak displayed on the
screen in a selected channel.