Default ( Q ) how to Create nxt lockscreen for gb

hello. how to do that on GB 2.3.4 was the
ability to close the screen and control the
music from getting sms is the info on the
lock screen I move the timing of this news,
and l is the message. the same
connections. on ROM nxt such a thing
works but does not want to use it only
wants to do it yourself. Can you help which
files to edit and what to add to them?

Wysyłane z mojego WT19i za pomocą Tapatalk 2
ROM - SlimBean-20140213-nozomi-LB-BETA0 ( TESTED )
KERNEL - S-DooMKernel-JB-v06