想到的是巨集applcation.commandbars.add於worksheet_beforerightclick內showpopup效果為
http://imgur.com/y9hdXs5beforerightclick內要加上cancel=true刪除方面以applcation.commandbars().delete括號內為add所命名的name觸發事件除beforerightclick，另有beforedoubleclickfaceid可參考
http://goo.gl/WWZGKr以原文連結來看為478~484