Right-click menu vs. shortcut menu

Which is the industry standard for technical communication when referring to the menu that opens when a user right-clicks an item on a screen? Is it called the 'right-click menu' or the 'shortcut menu'?

I'm trying to establish a standard for instructional manuals at my work, and both terms have been used interchangeably and inconsistently for over a decade. We have a well-established customer base that has been drilled with 'right-click menu,' so I'm hesitant to change it. Also, because our average readership isn't tech savvy, it seems an elementary way of associating the action with the item, which might be good.

However, 'shortcut menu' seems right to me. The Microsoft Manual of Style uses this term, and Google Ngram suggests that the term is the most popular. Are there any guidelines for choosing one over the other? Should I continue with tradition because of the usage history with our customers, or upgrade to the current lingo to be within industry standards?