while [ 1 ]
do
select word in $menulist #change_title remove_tag change_tag add_line quit
do
if [ "$word" = "" ]
then
   exit
fi
case $word in

# first menu option Change Title

Change_title) 

.....

done

PS3='Choose your word: '
while [ 1 ]
do
select word in "change_title" "remove_tag" "change_tag" "add_line" "quit"
do
if [ "$word" = "" ]
then
   exit
fi
echo $word
break
done
done

echo "Type Ctrl-C to Quit"
menulist="Change_title Remove_tag Change_tag Add_line"
while true
do

select word in $menulist #change_title remove_tag change_tag add_line quit

do

case $word in

Change_title ) echo "You selected change-title";break;;
Remove_tag ) echo "You selected to remove tag";break;;
Change_tag ) echo "change tag";break;;
Add_line ) echo "TO add line";break;;

esac;

done

done