Your choice is to use PzDB and I have nothing against.
But please, don't disminish P3dO features. 

P3dO offers a generous free version for Poser users since more than 9 years.
This free version has been constantly updated, upgraded, distributed for free.
The free version has no time limit and is enough to do the basic organization you might need.
Plus it allow to open directly from Windows (P3dO) to Poser.

And also as the name suggests P3dO is an Explorer, then of course Copy Paste, Drag'n Drop works exactly the same as with the Explorer.
After a search you just double-click a file and it opens in Poser. The search is not as rich as PzDB and that's normal the 2 software have different purposes.

I insist that the free version is enough to open files in Poser and manage them with the Explorer. There's absolutely no limit there.
The pro version has more features, and they are not free. This is not a limit, this is just another software and the message is: if you want more, then pay for it. Exaclty like PzDB but again in a different way.

I just can't believe what is written above.

Yarp
www.senosoft.com

Yarp - author of P3DO Organizer for Poser