It is technically possible to do this but…
DO NOT DO IT!!
One huge library with 1800+ emitters would most likely cause big problems.
If you want to test this, do the following:
1) Load any library, then “save library as” and give it a new name (“my big test”)
2) Open the Library Manager by selecting “Manage”
3) Select a library in the center list, then select the first folder in the right list and click the “<- Add" button. Repeat for each folder in the selected library.
4) Select another library in the center list and repeat.
I'd suggest doing this for 5 libraries or so, then closing the manager. I don't suggest rearranging any emitters in the library yet.
See what sort of performance issues you get. You may want to close pI3 then open it again.
You can keep adding libraries to this test library, and see what starts to happen.
Another thing to point out: when 3.5 is released later this Spring or Summer, it will have an entirely new library system that will essentially do away with libraries, and allow you to search and categorize however you want.
Alan.
wondertouch