Texture packaging

Ok, I''m a new PR user so be a LITTLE gentle when pointing me to the docs... Is there a mechanism for loading textures from memory rather than from a file, or some way to get an in-memory texture into PR for use? I don''t _require_ this.. I can just use all .PRO objects and bundle those up in a packaged ''level'' file.. but if the facility is there I''d appreciate anyone pointing me to the appropriate docs. TIA!