Picture/image files won't open

[rbdflyboy]

Hi Rbdflyboy. I was able to do this successfully too with a png and jpg file on the desktop. Image viewer (aka Ristretto) opened the file by double clicking or I could select both, right click, and choose open all.

The files all open with applications ...no problem can edit and save.. When right clicking the file on desktop, the drop down menu doesn't contain "open all" option. How does one add this option in the right click drop down menu?
The purpose here is to decorate my desktop with some really cool pics that were download and edited.
Installed Screenlets, added a framed drag and drop box to the desktop, dragged the file into the box and released it in the box...nothing...no pic in the box. At a loss for what to try next?
Thank You both for your time and replying.