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Where is the Zotero toolbar in Word for Mac 2008, 2011?
The Zotero Word plugin for Word 2008 and Word 2011 doesn't offer a toolbar, instead adding a “Zotero” entry to the AppleScript menu (the manuscript icon to the right of the Help menu):
Most menu commands are also available through shortcut keys.
Word for Mac 2008 lacks support for Visual Basic for Applications (VBA), making it impossible to create a toolbar. Microsoft has announced that it will not support Word for Mac 2011 in macOS High Sierra and macOS 10.13.2 broke the support for the Zotero Toolbar. Word 2016 includes a Zotero tab (Word 2016).