Hi,

I would like to add an item to the chart contextual menu, but I don't know
where to find it!

The cell/worksheet contextual menu is accessible via

((Excel.Application) xl).CommandBars["Cell"]

whilst ((Excel.Application) xl).CommandBars["Chart"] points not to the
contextual menu but to the floating toolbar menu.

"Chart Menu Bar" is, of course, the top level menu bar (File,Edit...), and
so I appear to have run out of items in the CommandBars collection that
contain the word "Chart".

Not sure where to look now - getting frustrated enough to question "is this
even possible?".