Command should be "crust" instead of "off".
if [ "$SUSPEND" -gt 0 ]; then set -- "$@" timeout "$SUSPEND" "sxmo_screenlock.sh off" fi
It works but unlocking leads to LED going wild: red on & blue flashing all the time until next reboot... Didn't find the reason yet.
Which values do you mean? Suspend via menu entry is working without LED issues, I tried several combinations of idle settings for lock, off & suspend times...