gistfile1.txt

select-left () {
  tmux select-pane -L
}
select-right () {
  tmux select-pane -R
}
select-up () {
  tmux select-pane -U
}
select-down () {
  tmux select-pane -D
}

zle -N select-down
zle -N select-up
zle -N select-left
zle -N select-right

bindkey '^H' select-left
bindkey '^J' select-down
bindkey '^K' select-up
bindkey '^L' select-right