Button 1 and 3 pair mode (Parameter Number 1, Parameter Size 1) In separate mode button 1 works with group 1, button 3 with groups 3. Click is On, Hold is dimming Up, Double click is Off, Click-Hold is dimming Down. In pair button 1/3 are Up/Down correspondingly. Click is On/Off, Hold is dimming Up/Down. Single clicks works with group 1, double click with group 3. Button 2 and 4 pair mode (Parameter Number 2, Parameter Size 1) In separate mode button 2 works with group 2, button 4 with groups 4. Click is On, Hold is dimming Up, Double click is Off, Click-Hold is dimming Down. In pair button 2/4 are Up/Down correspondingly. Click is On/Off, Hold is dimming Up/Down. Single clicks works with group 2, double click with group 4. Action on group 1 (Parameter Number 11, Parameter Size 1) In Switch On/Off only mode On command is sent on Dim Up, Off on Dim Down. In Scenes mode the scene ID sent is (10 * group + ActionID), where ActionID is: 1 = On, 2 = Off, 3 = Dim Up Start, 4 = Dim Down Start, 5 = Dim Up Stop, 6 = Dim Down Stop Action on group 2 (Parameter Number 12, Parameter Size 1) In Switch On/Off only mode On command is sent on Dim Up, Off on Dim Down. In Scenes mode the scene ID sent is (10 * group + ActionID), where ActionID is: 1 = On, 2 = Off, 3 = Dim Up Start, 4 = Dim Down Start, 5 = Dim Up Stop, 6 = Dim Down Stop Action on group 3 (Parameter Number 13, Parameter Size 1) In Switch On/Off only mode On command is sent on Dim Up, Off on Dim Down. In Scenes mode the scene ID sent is (10 * group + ActionID), where ActionID is: 1 = On, 2 = Off, 3 = Dim Up Start, 4 = Dim Down Start, 5 = Dim Up Stop, 6 = Dim Down Stop Action on group 4 (Parameter Number 14, Parameter Size 1) In Switch On/Off only mode On command is sent on Dim Up, Off on Dim Down. In Scenes mode the scene ID sent is (10 * group + ActionID), where ActionID is: 1 = On, 2 = Off, 3 = Dim Up Start, 4 = Dim Down Start, 5 = Dim Up Stop, 6 = Dim Down Stop Typical time used to differenciate click, hold and double clicks This allows to save battery