Thanks to all for your help!
Just to give some more details that will hopefully answer some questions and make things more clear...
I am "short-circuiting" the need for a phase coupler on the panel by sending the appropriate commands via RF from the CM15a to the TM751 (set to house code B). I am controlling certain devices on that other circuit (B) from various controllers on house code K via macros that are triggered from unit codes 1-8 (in most cases) on house code K.
At the end of the night, I wanted to turn all units off via this method described above but using the "all units/lights off" button on the plug in controllers and not waste the precious 1-8 buttons which is what X10 suggested doing.
I have taken Nightriders suggestion and looked at that software - THANKS! I just need to get a little more situated with AHP before I add another “module.” I am having enough problems (AHP not working with Windows Media Center!%$##*@&@, simple macros not working, etc.) before I add more software to the pile.
Not sure if this is the right place but let me throw it out there while I have your ear. Anyone know of a work-around to the Windows Media Center (Vista) problem?
Second question in this immediate area. I cannot for the life of me get a LM465 to dim via this architectural approach described above. The whole macro is one RF dim command to unit 9 on house B. I have varied the unit and house code, different circuits, different commands etc. with no luck. Most of the time, the light dims to OFF even when saying brighten to 96%.
Any suggestions?
I will post this with a more appropriate heading but I thought I would ask you “guys” as well.