Hi @rfbriggs
You’re not - others have posted about workarounds they use, eg mhucka.
Outside DT, I’m afraid.
I usually use Acrobat DC - it’s reasonably efficient with the keyboard (Cmd+B) and it will “name” the bookmark with selected text, which can be useful. PDF Expert for Mac is also quite good but as best I recall it doesn’t name the bookmarks by text selection.
One thing about Acrobat is that what it calls “bookmarks” are what other apps call “table of contents” or “outlines”. So a “Bookmark” in Acrobat is an “Outline” in PDF Expert and DTTG and “Table of Contents” in DT; conversely a “bookmark” in PDF Expert won’t be recognised as a “bookmark” in Acrobat (so you have to use the “Outline” pane, not the “Bookmark” pane in PDF Expert). If that makes sense… 