Darkworld, if your intent is to delete some items while keeping the rest of the library, bear in mind that more than one item might use a given texture JPG or OBJ. So, if you delete everything relevant to item 1, you might inadvertently disable item 2.

I don't have a solution for safely removing all files for some items without the risk of destroying ones you want to keep.

Poser 12, in feet.  

OSes:  Win7Prox64, Win7Ultx64

Silo Pro 2.5.6 64bit, Vue Infinite 2014.7, Genetica 4.0 Studio, UV Mapper Pro, UV Layout Pro, PhotoImpact X3, GIF Animator 5