You should create your own library with all individual stuff (jpg, gsm etc.) inside, which you have to move beside your pln.
Other way: You use the pla (archive) format, which encludes all plan relevant elements. But you have to use it each time you change your workplace. If you extract the library out of the PLA each time to change, you have to be aware of redundant library parts, because AC creates every time a new folder.
I use a folder, which I carry on my data-wart.