i'm using Mathematica 11.0.1 (the only upgrade so far, the latest). i'm using a relatively new iMac with latest Sierra (one update behind)

i go to format and it lets me select size but not Font, "Show Font" is greyed out, always, all notebooks i open

I'm wondering if anyone who uses 11.0 (on iMac) can select fonts, if it's just my machine that is somehow badly updated by remote "upgrade images".

i need to select courier for NON-PROPORTIONAL fonts for a document "view" that is laid out for thousands of such elements (no small change will fix - i need a historically reliable and compatible and available font; Courier). it's a periodic table with allot of data on it all specially laid out for compact printing purposes. i had thought mathematica, reading it's book, was saying it would be a good tool for doing so since it had "so many standards" and such - but i'm wondering - nearly nothing that worked in old Mathematica works - the work i have to do to repair is just ... horrific i hate re-doing things i already did

(off topic: i'm a bit worried several elements will need hacking because old Mathematica had "Math?Mono" fonts and unsure if compatiblity with new Mathematica fonts will exist, or if old fonts will be installable somehow (they are in old pdf, but that doesn't let me use them in newly laid out documents))