Add the possibility to remove a context menu item at a certain listener

[Sa'ar Zac Elias]

During work, I've encountered a situation in which I need to remove the div options from the context menu in a specfic condition (while leaving it intact in any other situation). This is currently impossible - one can remove an option for the entire instance, and not just that one time.
My suggestion is to allow it with null assignment:

return { editdiv : null };

[Teresa Monahan]

We would also like to be able to remove menu items dynamically in the editor, depending on the current context. Please consider including this feature in an upcoming CKEditor release.

[Jakub Ś]

Perhaps there could be possibility to add options like add/remove/modify context menu item.
Much more work but more happy users.

Another typical use case except for removing items based on current context is changing their values or adding them.

[Frederico Caldeira Knabben]

We should investigate the possibility of having this event-driven, having the editor instance firing either the "contextmenu" or "menu" event, having the list of items (Array) in the data field, so one can manipulate it freely.