Just discovered a feature of the library I hadn't noticed before, not sure if it's new or been available for a while. A right click on any item in the library gives the option to 'Show in Explorer', which I find a boon when organising content and/or deleting old folders. I also prefer to use windows search over Poser search. Poser library seems to update in real time. Works for Poser 11 sr4/Windows 7 so not sure if it works for Mac users

Poser 11 , 180Gb in 8 Runtimes, PaintShop Pro 9
Windows 7 64 bit, Avast AV, Comodo Firewall
Intel Q9550 Quad Core cpu,  16Gb RAM, 250Gb + 250Gb +160Gb HD, GeForce GTX 1060