When I switch to vi mode in shell (bash or ksh) very useful to me shortcuts such as C-p and C-n to go back and forth in command history disappear. I don't want to rely on Up and Down for that. I don't want to add key bindings every time for every shell. I just want to know if there's alternative native Vi mode commands for navigation in history.

Btw, C-l for clearing screen disappear too, is there a default key binding for clearing the screen in Vi mode?