Commented Unassigned: Support for Excel (64-bit) for Office 365? [24908]

Using the latest .81 build (64 bit) with Excel 2013 for Office 365 'Pro Plus', which includes PowerPivot:
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However, the OLAP Tools context menus are mostly disabled:
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Any insights? Thx!
Comments: ** Comment from web user: furmangg **

Unfortunately this is a limitation of Power Pivot in Excel 2013:
https://olappivottableextend.codeplex.com/wikipage?title=Excel%202013