Velleman VMB4PD - Manual (Page 22)

VMB4PD 22
4. Press the upper right button to display the next program step.
5. Press the lower right button to display the previous program step.
6. Press the lower left button to modify the displayed program step.
Next program step
Quit program menu
Previous program step
Quit program menu
Next program step
Modify program step Previous program step
Quit program menu