Create an editable, vertical navigation menu, with right expanding dropdowns for a website.

I need an editable and customizable, vertical navigation menu with right expanding dropdowns: Description: I need to be able to add or remove the names of locations in each tier of the navigation menu because of regular editing requirements. Perhaps this can be designed as a webpage that I can upload to my server and then I can link to it, but I need to be the only one who can edit the page. Maybe this can be a script that can take this info from a spreadsheet-like format, and export it to HTML. I want to avoid dealing with HTML code. Style of the exported menu: (The exact color and look of this can bee viewed on attachment). Front style Ariel 16 pt. Menu text color: Red 102, Green 102, Blue, 102 Text is hover and click activated for sub-menus Hover text color: Red 0, Green 118, Blue, 106 Background color: White Function outline: 1) Country name/ 2) Sub-menu option here in case I need to add a sub-region*/ (If empty this sub-menu is hidden) 3) Sub-menu for a city or for multiple cities in that country or sub-region*/ (If empty this sub-menu is hidden) 4) The name of each city is a hyperlink to a specific website page >>. Menu Example: REGIONS Africa Madagascar - Antananarivo (hyperlinks activate on hover) Mali - Timbuktu, (Also see Ghana) Nigeria - Abuja - Port Harcourt - Lagos America: North United States (sub region*) Colorado - San Luis Valley New Mexico - Albuquerque - Santa Fe