Annotated MLA Style
I'm surprised to see that there is no annotated version of MLA in the style repository that will automatically include whatever is in the "Extras" field when you generate a bibliography. Does anyone have one handy? I tried to follow the directions under https://www.zotero.org/support/dev/citation_styles/style_editing_step-by-step I downloaded the MLA 9th edition file but it won't let me open it in text wrangler, which zotero recommends for editing citation styles. Any advice would be appreciated. Thanks!
MLA 8 annotated is available here: https://github.com/totallyuneekname/zotero-annotated-mla I don't think anyone ever created a 9th edition one, but IIRC they're quite similar.
but you can also just install it and then use the built-in style editor, or you can use the visual editor linked from the instructions.
To install the MLA styles above, just click on the style you want, then the "Raw" link at the top right.