Thanks for your reply.
Yes, I think this can help.
I think it’s better to use a php page with a secret code than dirctly expose pulseStation 4020 port over internet…
I think I will although use httpS.
where can I get the syntax to command my devices like you did: “http://LocalIP:4020/message=1|HUB|vdevices|UPDATEPROPERTY|vdevices-26|1|false”