RapiWeaver, RW/Writer and SEO

Anyone have any good tips on how to change and implement SEO using RapidWeaver 6 and RW/Writer?

For RapidWeaver, was trying to change the title and description that shows up in google and when you post it. I had it all configured when it was like Rapidweaver 2 and now I can’t seem to figure it out again. Does someone have a page that explains?

For RW/Writer: If I put a link on Facebook, I would like it to pull in the actual blog title and description, not the webpage title and the first paragraph