Go to the post you want to highlight and click the three connected dots in the green ribbon at the top of that post. That will open a window with the code to the location of that post. Double click that and hit copy which will post it to your computer memory.Sorry - I think it is OK now - I was farting around trying to put that big long thing as "here" - still don't know how.
But did you guess???
Then go to the post where you want to highlight it and, in the message box banner click the icon that looks like two chain links.
Paste the memory link to the URL into the top entry and give it a name in the bottom one.
Bing, bang, boom, and you're cooking with gas. Well, wood more likely in your case, but...