Or, add this to the bottom of the CON file;
gamevar PA_PAL 0 2 // Per Actor in case there are multiple, might be OK with 0 1 instead with this event.
ONEVENT EVENT_LOADACTOR
ifactor NUKEBUTTON
{
getactor[THISACTOR].pal PA_PAL
ifvare PA_PAL 0
{
setactor[THISACTOR].lotag 65535
}
}
endevent
I have not tested this, but it should force and Pal 0 nuke button to a lotag of 65535. If it DOES have a palette it will not do anything.
Edit: Assumes the use of EDuke32 of course, sorry, I only skimmed and scanned the thread.