In a word, no. I’m pretty sure when Trip Advisor bought SeatGuru they had no idea what to do with it, and they have some grevious errors they decline to correct. When I’ve sent corrections, I get a canned mail back - but no changes are made.
Read the 777 / 772 and 77W threads here. The applicable chart is often in the first post, and the Wikipost at the top of the page distilled a lot of knowledge shared by members. Start with
https://www.flyertalk.com/forum/amer...under-way.html; the Wikipost at the top of the page has links to the other 772 threads (there are three configurations, to be two configurations in the future).