Board Thread:Support Requests - Getting Technical/@comment-1676371-20190510153809/@comment-24155515-20190514153549

AWB's fancy parts of the find and replace function can be used to do what is asked in the OP, though it appears the conversation has progressed past that point.

(I used my bot to do the same basic premise, except changing URL structures and converting certain external links to internal ones, basically changing what surrounded one part of a URL.)