1.66:1 support?

Cheers to all of you. This app is fantastic. I have one request: will you be providing aspect ratio guides for 1.66:1? It’s the ratio I need for my project. 14 x 9 comes close, but not enough.
Gary
Gary
https://forum.blackmagicdesign.com/
https://forum.blackmagicdesign.com/viewtopic.php?f=2&t=217475