Marking objects from view for later use If I have a table containing, say, images, how can I be able to select an image from one view, one from another and have them added/marked for later use (i.e., some sort of "add to cart" feature). So then I could select an image from slideshow1, one image from slideshow10 etc and then be able to do whatever I want with them (perhaps create another view?)
This sounds like a perfect job for Flag module.

From the module description:


  Flag is a flexible flagging system that is completely customizable by
  the administrator. Using this module, the site administrator can
  provide any number of flags for nodes, comments, or users. Some
  possibilities include bookmarks, marking important, friends, or flag
  as offensive. With extensive views integration, you can create custom
  lists of popular content or keep tabs on important content.


For your use case, I would create a new flag for your image content type. Add the flag operation to your current views of images. Create a new view that uses that flag as a filter.