[TheDoctor66]

I would like to add my own wallpapers but not lose the Linux Lite ones
I would like to customise it a little bit too hard my own

Thank you

[Artim]

You can tell Linux Lite where to take wallpapers from. I keep my other wallpapers in /Pictures/Wallpapers (a new folder I created within Pictures) and simply choose that folder from which to select my wallpapers.

[stevef]

The help manual shows where the default location is and how to add pictures to the collection.

Open the Help Manual.  Click 'customize' and scroll down a little to 'Desktop Settings Basics'

[tek10]

What Artim said.

I always add my own wallpaper folder each time I do a new install. I still occasionally use a wall from LL 1.0.6 that is no longer in the default walls.

I second looking at the help manual. Lots of questions are answered there.