Did some more digging and this has been mentioned before. Too bad it has not been resolved internally by now.
This is a link that describes adding a script "dynnat" to the "/config/scripts" directory.
<https://blog.laslabs.com/2013/06/nat-reflection-ubiquiti-edgerouter-lite-vyatta-and-dynamic-ip/>
#!/bin/vbash
IP=`curl -s icanhazip.com`
source /opt/vyatta/etc/functions/script-template
configure
for RULE_NUM in `show service nat | grep rule | tr -d '{' | sed 's/rule\|\s//g'`;
do
RES=\"`show service nat rule $RULE_NUM`\"
echo $RES
if echo $RES | grep -q '+';
then
set service nat rule $RULE_NUM destination address $IP
fi
done
commit
save
