Rocktron VooDu Valve Online User Manual page 76

Step 5
Turn the PRESET control to select the preset you wish to store the new configuration into. (If
you want to store the selected configuration into the current preset, skip this step.)
Press the STORE button a second time to store the selected configuration into the selected
Step 6
preset. The Voodu Valve will display "STORED" briefly.
When a new configuration is stored into a preset, each of the parameters contained
in the new configuration that were contained in the previous configuration will retain
the same values. All new configuration parameters that were not contained in the old
configuration will be set to their default value (or their lowest value).