Actually found some code by digging through someone's DLP keymaster codes (whatever that means).

Discrete On 001
Discrete Off 253

I used your instructions to delete everything on System 1 and System 3 so I could reprogram it for All On/Off with the Samsung TV instead. Except I ran into a problem of discrete on and off for everything else! LOL

I have discrete On and Off for the Samsung learned on the 3rd Page of the TV menu, so I started my new macro with

TV
TV x 2(at the top)
Power On (discrete, learned)

Then I got stuck. Is there an easier way to add the discrete on/off for the Samsung into the default macros in Sys1 and Sys2? Does that make sense?

The only way I can think of doing it is to find the discrete on/off codes for everything else (Amp, DVD, VCR, All Sony), program them into individual spots under some obscure component, like Tape A, then creating a Macro from that. Hope that makes sense... :(

Is there an easier way to do what I'm trying to accomplish?