Using new Tab feature in Google docs (via Box)

Google Docs has, somewhat recently, released a "Tab" feature that allows for Tabs to be created in a document. These tabs are separated as sheets would be in an Excel or Sheets workbook. When using Google Docs for Box, I can see the tabs and outlines panel but have no ability to use the tab function (cannot add new or edit the name of Tab 1 - which appears by default). 

I haven't been able to find any information on why this doesn't work in the Box integration. Is it a matter of Box needed to update or something I (or my organization) can control at the account level?