I apologize in advance for possible obvious questions but I searched out forums and did'n get answer, so if there exist tech paper or manual I will be glad to read it - just point me on it. I'm programming a whole house lighting control with c-bus, system spec: 4 12-channels relay modules 2 4-channels dimmer modules 7 DLT keypads about 30 4-buttons saturn keypads PC RS-232 interface as well. Problem - keypad modules is not able to handle scenario like "all off" because maximum amount of light groups that could be included in scenario is only 40. In my case I should turn off about 56 groups. I divide house on few zones - like 1 floor, 2 floor - in this case I can use Trigger on/off, but it works somehow strange - I can use only 1 trigger button per keypad and I can't put a custom DLT label on this action on DLT keypad. Also next strange point - If I program room within same floor - I use 1 trigger group but different actions - and activating any of these actions causes to trigger the whole group - looks like - 2 children rooms on the floor, 2 different buttons on different keypads, each button switches off all groups in each room. But status LEDs under those buttons work not obvious - like if I turn off boy's room - scene "Boy's room off" is ON and LED under that button also goes ON, after that I push button on next keypad, corresponding to "Girl's room OFF" - and LED under this button goes ON, but previous LED turns OFF. How usually this situation solves? I'm sorry again, looks like I just can't make a obvious thing, and I'm sure that underwritten problems could be solved easily - just point me in right direction, please. Oleg