RIGOL DG4000 Series - Manual (Page 202)

RIGOL Chapter 10 Utility and System Settings
DG4000 Series User’s Guide 10-30
User-defined Waveform Key
The User key at the front panel of DG4000 provides a shortcut for users. You can
define this shortcut key as the desired built-in waveform or waveform stored. You
can recall and set the desired waveform under any operation interface once you
press this shortcut key.
To modify the waveform recalled by this shortcut key, press Utility  UserKey to
open the user-defined waveform interface. Use the knob to select the desired
waveform (such as: AbsSine) from the interface, use
to open the 2/2 menu
page and then press Select.
Note: to define User as the shortcut key of the stored waveform, press Utility 
UserKey, use
to open the 2/2 menu page and press Stored to select the
desired file. Stored is only available when “.RAF” file is currently stored in the
instrument.
Figure 10-5 User-defined Waveform Interface
At this point, pressing User under any interface would output AbsSine signal from
the corresponding channel (if currently turned on) and you can also modify the
AbsSine signal parameters.