OmegaT Scripts project was started as a series of blog posts sharing simple Groovy scripts written for OmegaT. Later these scripts were organized into a repository for easier use.
In this repository you'll find several scripts devided into a few categories:
Create additional files of various types containing data from OmegaT project.
Various scripts to facilitate translation or editing in OmegaT
Scripts that perform different manipulations with target text.
Scripts used to delete tags in the current target.
Scripts to run MT on various pieces of text retrieved in OmegaT (source, target, fuzzy match etc).