Suggestion needed for updating .bld file

[CREvans]

Have an interesting scenario where I'm wanting to parse a VBPro .bld file and for every vbscript step, check for the instance of a given line and if that line is present, to put a new line just below it, while maintaining the original line. Like this:

Original:

Line 1
Line 2
Line 3

Desired output, with "Line 2" as the instance line:

Line 1
Line 2
Added Line
Line 3

It looks like the search/replace function isn't going to do what I want, since that will replace the existing line, not add a line after it. I don't know if this is possible from within vbpro itself, or if I'll need to develop something external to parse the .bld file.

Thanks in advance!
Scott