So you basically want a Power Off button that doesn't require a long press. Here's what I did:

Find a remote in your house that you don't use or doesn't interfere with your setup and is recognized by the empeg (use hijack "button codes display" to test this). Write one of the IR codes down and learn this button into your pronto.

Add the following ir translation(s) to hijack (see the hijack faq for instructions):

[ir_translate]
XXXXXXXX=000000.L

Where XXXXXXXX is the code you wrote down.

I also added buttons for power down after track and power down after playlist. If you want to add these also you can use these translations:

XXXXXXXX=000006,b94605,000006.L,000002,000006
XXXXXXXX=000006,b94605,000006.L,b94603,000006

Tom