A context menu is a single-level or a multi-level pop-up menu that offers a set of choices (called menu items) when a user interacts with the worksheet via right click mouse operation.

SpreadJS supports built-in context menu and customization of built-in context menu. This provides users with the flexibility to quickly execute some of the important operations or repetitive actions in a spreadsheet. The menu items are displayed on the basis of the area clicked in the worksheet. You can add and remove custom menu items and customize the structure of the context menu. 

For more information on custom menu view and extended context menu, see Using the Context Menu.