Split X12 messages on ISA Segment

I am trying to split the EDI/X12 message to split by every ISA segment in the batch.



However unable to find an option or a java/javascript code to split EDI message using split by batch in the source connector:



Channel-->Summary-->Set Datatypes--> EDI/X12-->Batch --> Split by Batch-->Javascript?



I am using Mirth 3.2(Latest version)..



Thank you for your help

Split X12 messages on ISA Segment