In zsh within a tmux, how do you make page up/down scroll up/down

Question

With my current zsh and tmux (byobu) configuration, typing the page up/down keys will enter ~ in the prompt. What I would like is that

• within a simple shell, page up/down scroll using the terminal history/scrollbar
• within tmux, page up/down make the escape command and use the tmux history navigation for the current window
• within a pager/editor, page up/down scroll up/down use the pager/editor scroll function

Answer 1

Actually after some research it happens that my current configuration already provide all I need :

• shift+<page up/down> will send the corresponding scroll command to the terminal
• alt+<page up/down> will send the corresponding scroll command to tmux
• <page up/down> will send the corresponding scroll command to the foreground process