How do I show menu item hot keys? In (insert any other OS here), many context menus items have hot keys for fast access (which are shown by underlining the appropriate character).

Is there a way to get this working on Mac? There do seem to be keys that jump to certain items, but I can't figure out what they are.

Note that I don't want to set up millions of shortcuts because


Applications have standard menu navigations across platforms
There's hundreds of items that I use in different contexts
It seems that the "equivalent" functionality is based on the starting characters and lots of typing as explained in Navigating to options in context menus's answers - in that question you can see that some menu items would be diabolically hard to select, involving typing whole words to disambiguate 2 items.

It seems that the application can specify priority, since the item selected isn't necessarily the first one that starts with what is being typed.