I've been looking around and I'm not sure where I can make a bot request for editing mediawiki projects, such as for editing a Fandom wiki. I've seen a bot request page for Wikipedia itself, but I'm not editing that.
I'm definitely not an experienced coder, so I don't know how to create one from scratch, nor add it to a wiki, etc.
I'm asking for a bot to remove (not replace) a single certain text from multiple certain pages. The reason behind this request is that while I'm editing, I'm able to use my browser's "find" feature to highlight the text I want, but unfortunately, this feature does not also duel select the highlighted text for me to easily cut (I have to manually do this with my cursor which is quite tedious and time consuming as the text is repeated hundreds of times on a single page). Is there a way to easily autoselect the same text and cut it without needing a bot?
Specific source code text to be removed: <br />
From all main pages titled: placeholderarticlepagename/Transcript
(Note: The pages I intend to edit out these breaks are not template pages)