The find filter searches for all unique occurances of a given regex an optionally saves those occurances to a file.
The find filter can be used to create a ReplaceListFilter merge file
|regex||the regex to be searched for||Yes|
|outFile||the file in which to place the list of matching results||No|
<find regex="abc"/>Searches for all number strings and places the results in "results.txt"
<find regex="[0-9]+" outFile="results.txt"/>