It seems that one cannot add a custom dialplan for misc destinations. The Goto in the did section reads
exten => s,n,Goto(ext-miscdests,3,1)
in the [ext-miscdests] context, we have:
[ext-miscdests]
include => ext-miscdests-custom
exten => 3,1,Noop(MiscDest: YourNameHere)
exten => 3,n,Goto(from-internal,XXXX,1) (XXXX is your extension specified)
so putting anything in ext-miscdests-custom is pointless because the Goto from the did section skips over it? at least i am unable to execute anything in there…thoughts??