sorry for the late reply.
You need to use the D_DarkSkyWeather.json from my earlier post to be able to see the Advanced page → http://forum.micasaverde.com/index.php/topic,40406.msg420817.html#msg420817
From the top of the advanced page you should be able to see the device id (in my case it is device #548)
Then run the following commands from Apps → Develop apps → Test Luup code
First (replace the xxx with your API key and 548 with your device id!):
local KEY1 = “xxxxxxxxxxxxxxx”
luup.variable_set(“urn:upnp-micasaverde-com:serviceId:Weather1”, “Key”,KEY1,548)
Then this (again replace 33.1 with you latitude and device id):
local VAR1 = 33.1
luup.variable_set(“urn:upnp-micasaverde-com:serviceId:Weather1”, “Latitude”,VAR1,548)
Then this (again replace 51.6 with you longitude and device id):
local VAR2 = 51.6
luup.variable_set(“urn:upnp-micasaverde-com:serviceId:Weather1”, “Longitude”,VAR2,548)
Then this (again remember device id):
luup.variable_set(“urn:upnp-micasaverde-com:serviceId:Weather1”, “Period”,1800,548)
And finally (again remember device id and change also sv (sv=swedish) to your prefered language, see DarkSkyWeather.pdf for options):
luup.variable_set(“urn:upnp-micasaverde-com:serviceId:Weather1”, “Language”,“sv”,548)
Restart luup engine if it did not restart automatically…