Yes, thx for the advice, I am doing the same
http://DOMOTICZURL/json.htm?type=command&param=updateuservariable&vname=VARNAME&vtype=TYPE&vvalue=VALUE

There is no way to see the sensor in the device list to be able to use it with the blocky events ?

Ok, thanks for the link.
I thought I could do it with Blocks

I am looking to do an event who will notify me if the door is open more than 45sec (like I forget to close it).
With my HC2 I used GEA, an amazin scene who can do cofee, but in DomoticZ, I don't know how to do it with Blocky since I don't find any way to do a loop.
Any idea ?