C-BUS - Can I open/close all shutters but still have individual control?
Yes you can, if you have for example 5 shutter relays all with separate group address for individual control and would like a master switch to open or close all then try the following:
On a device supporting scenes, create a close scene with all of those shutter relay groups set to 0%, under the Trigger Control tab create a Trigger Group with the action selector set to 0.
Now duplicate that scene and set the groups to 100%, under the Trigger Control select the same Trigger Group but now set the Action selector to 255.
On a key input (switch) change to the secondary application and select the Trigger Group with function on/off.
When pressed this will send the 255 to trigger one scene and when pressed off will send the 0 level to trigger the alternate scene.