Is there a way I can configure fop2 button file to show status on custom made MeeTme apps ? Like (in my "extensions_custom.conf'') I have:

[dynamic-conference-with-pin]
exten => s,1,Answer()
exten => s,n,Wait(1)
exten => s,n,MeetMe(,AD)
exten => s,n,Playback(vm-goodbye)
exten => s,n,Hangup()
; end of [dynamic-conference-with-pin]

...and to see callers in this context, I tried using (in my button file):

[CONFERENCE/961]
type=conference
extension=961
context=dynamic-conference-with-pin
label=My conf

...

But this is not working,

What am I doing wrong, must I set any variables, hints or what? Any tips or suggestions ?