#!/usr/bin/zsh

export ALREADY_FOCUSED=0
tmux list-panes |grep "^1.*active" -q && export ALREADY_FOCUSED=1
if [[ $ALREADY_FOCUSED -eq 0 ]]
then
  tmux select-pane -t 1
fi

tmux send-keys 'F4'

if [[ $ALREADY_FOCUSED -eq 0 ]]
then
  tmux last-pane
fi