Version 2 adds a feature requested by /u/Anguiish where you can specify a directory of schematics and have them randomly replace the found block.
How you use this new feature:
The attached file Village.zip has schematics for a village.
This filter replaces the nominated block in the selection area with the contents of a schematic file.
Filter suggested by james22402 on the forums - http://www.minecraftforum.net/topic/213853-mcedit-filter-scripts/page__st__300#entry22666205
MCEdit Filters >