New menu style

src/freedombone-template

 echo '}'
 echo ''
 echo "function configure_interactive_${app_name} {"
+echo '    W=(1 $"Option 1"'
+echo '       2 $"Option 2")'
+echo ''
 echo '    while true'
 echo '    do'
-echo "        data=\$(mktemp 2>/dev/null)"
-echo "        dialog --backtitle \$\"Freedombone Control Panel\" \\"
-echo "               --title \$\"${app_name}\" \\"
-echo "               --radiolist \$\"Choose an operation:\" 16 70 3 \\"
-echo "               1 \$\"Option 1\" off \\"
-echo "               2 \$\"Option 2\" off \\"
-echo "               3 \$\"Exit\" on 2> \"\$data\""
-echo '        sel=$?'
-echo "        case \$sel in"
-echo "            1) rm -f \"\$data\""
-echo '               return;;'
-echo "            255) rm -f \"\$data\""
-echo '                 return;;'
-echo '        esac'
-echo "        case \$(cat \"\$data\") in"
+echo '        # shellcheck disable=SC2068'
+echo "        selection=\$(dialog --backtitle \$\"Freedombone Administrator Control Panel\" --title \$\"${app_name}\" --menu \$\"Choose an operation, or ESC for main menu:\" 14 70 3 \"\${W[@]}\" 3>&2 2>&1 1>&3)"
+echo ''
+echo "        if [ ! \"\$selection\" ]; then"
+echo '           break'
+echo '        fi'
+echo "        case \$selection in"
 echo '            1) # call some function for option 1'
 echo '               ;;'
 echo '            2) # call some function for option 2'
 echo '               ;;'
-echo "            3) rm -f \"\$data\""
-echo '               break;;'
 echo '        esac'
-echo "        rm -f \"\$data\""
 echo '    done'
 echo '}'
 echo ''