Master page dictionary divider tab design

I want to use tabs along the outside edge of each left and right pages in my chapter documents to indicate the name of the chapter. I want the tabs to appear the way alphabet letters appear along the outside edge of dictionary pages; i.e., where A appears higher on the outside edge than B; B is

Master page "dictionary divider tab" design

I want to use "tabs" along the outside edge of each left and right pages in my chapter documents to indicate the name of the chapter. I want the tabs to appear the way alphabet letters appear along the outside edge of dictionary pages; i.e., where A appears higher on the outside edge than B; B is