How to take the inner plastic door pannel off

[JCJ]

So do I understand correctly, that for the sole purpose of sticking noise reducing lining in the map pockets, it is no use taking the door panel apart?
Because the map pocket is "permanently attached" to the door trim, so to speak.
I'd thought the inside wall (towards cabin) of the map pockets were attached by similar clips, which would appear after taking the door trim off.
So now I'll have to be really carefull with that glue gun and/or double-sided advesive tape, when sticking those pieces of anti-slip sheets and even more careful when cutting them off at the edges.
ER experience comes in handy now.