Renault scenic II - Back seat storage tray removal

Dear all,

I am currently cleaning my car:crazy:
and discovered that there are some documents stuck in one of the back seat storage trays.

These trays are simular to the front seat storage trays but smaler.

There already exists a topic on how to remove the front seat storage trays but this procedure does not work with the back seat trays.

Could somebody please assist me.