I am a big procrastinator when it comes to learning MathJax. I happened to remember that only before asking a question. Is there perhaps a shortcut to simply copy an equation from one part of the site and then edit according to our own question (hope this doesn't count as plagiarism for not doing the MathJax part), much like in desmos where you copy a part of an equation and then insert it somewhere else on the site.
Or maybe this feature might cause a headache, but is there a any better technique