I found out that replacing the command with NOP doesn't work in my standalone, it just sits there waiting forever if it's a still menu. I only get control back if we're in a loop menu, when the loop restarts. As it worked perfect in PowerDVD I thought a NOP was safe ... is this normal?
If you keep an original command you will run into similar problem.
Previously I was using the direct edit trick in Vobedit to disable button's (setting all the attributes to 0) and editing button navigation (by changing the hex values directly and copying from the previous buttons hex value). After much time messing around I finally got all the buttons I wanted disabled/edited working correctly on the PC player. I nearly chucked my settop out the window when I found that ALL the disabled buttons still worked! Having tried this app - all the buttons now disable on the PC and settop - success!