How to fire a control on system 1 from your sys 2 matrix Using Control macros you can fire a remote control from your local matrix 

//Define remote system to be used
intrsys = 2; // getlocal GPI controlControlMacrolocal = ControlMacro.GetControl("PSU","Alarm"); // getremote control on system number “rsys”ControlMacroremote = ControlMacro.GetControl("Glob","Alarm", rsys); //local control triggers remote control (GPSF) using get remote GPSF commandlocal.Triggers(ControlActions.DCCAction(    remote.ControlObject.GetGPSF(TalkType.Talk).Card,    remote.ControlObject.GetGPSF(TalkType.Talk).Pin,rsys) The “local” system is the one you use this macro on. In thisexample you have a local control by the name of “PSU  Alarm”. Whentriggered (for example by Logic Maestro) it will trigger the control “GlobAlarm” on system 2. You can obviously change the names of both the local andremote control to match what you are trying to do. You could also use FOR loopsto have a bunch of local controls with a similar names fire a bunch of remotecontrols. All controls used here have to be created by hand in ECS/EHX. Youwill also have to “use” any remote control that you are trying to trigger inyour local matrix. By  “use” I mean for example place them on keys of adummy panel so that they are included in the configuration at the time of themap compilation. If you don’t that do that the macro will not compile and youwon’t be able to download. Just an idea for a possible naming scheme: OUT[to_system_number][number]TriggersIN[from_system_number][number] So for example when my local system is system 1 and theremote system is system 2, the first linked control pair will look like this:OUT0101TriggersIN0201 An alternative that doesn't require the use of controlmacros is to create a dummy group on your local system and set a remote controlas its secondary action. Then use a route or Logic Maestro XPT action totrigger the local dummy group.This also works - (see other solution titled "Firing controls on Remote Systems using Control Macros, Logic Maestro and Secondary Actions"