How to show music playing on kustom lock screen?

Hello i made a kustom lock screen but there are some issues

how to add the network and battery text like original samsung screen ?
how to add the call and camera button ?
how to show music screen playing on the kustom lock screen ?
how to double tap lock screen to close it ?

how to add the network and battery text like original samsung screen ?
-You can use network (NC) and battery (BI) on a text element for this.

how to add the call and camera button ?
-insert icons and add Touch function to launch the specified apps

how to show music screen playing on the kustom lock screen ?
-Any Kustom music player should do here. There’s a bunch of this online. Here’s a tutorial

how to double tap lock screen to close it ?
-Double tap is currently not available