I have a few classes, each in separate Sketchbook project directories, that I would find useful to use in many sketches.  I would prefer not to have to put copies in each sketchbook project I'm working on.  I'm developing these classes to be used in different types of projects and frequently make changes to and it would significantly reduce time managing files if I only had to edit one referenced file.  I could put simlinks (ln -s) in each sketchbook folder but I'm reduced to my faster Vista box.

Is it possible to do something like this through the Processing GUI?  There are 4 versions of Eclipse out right now that nearly indistinguishable to a non-technical person and it's difficult to tell which one to install to learn to use with processing.  I'm gathering that Eclipse has this function?

If not, please consider this a suggestion for tool development.