while getopts ":I:L:R:T:n:s:t:" opt; do
case $opt in
I|L|R) helper_opts="$helper_opts -$opt $OPTARG";;
- T) tmux="$OPTARG";;
+ T) tmux="$OPTARG"; helper_opts="$helper_opts -$opt $OPTARG";;
n|s|t) session_opts="$session_opts -$opt $OPTARG";;
esac
done