Inserting new line into tags

I would like to combine two tags into one, and insert a 2x newlines in between them as follows, so:

becomes:

How do I do this? I've tried with a regular expression, but that doesn't seem to match the entire eng|| substring, just the individual characters:

Or is there another way I can insert a newline?

%COMMENT%$regexp(%UNSYNCEDLYRICS%,'^eng\|\|','\n\n')

... or ...

%COMMENT%$char(10)$char(10)$cutLeft(%UNSYNCEDLYRICS%,5)

DD.20170611.1533.CEST