Creating device entries

Not sure if this is the right area.

I’m thinking about cloning D_HVAC_ZoneThermostat1 to enable support for the EmergencyHeatOn option in S_HVAC_UserOperatingMode1.xml. I’d rather make a new device rather than muck around with the existing files.
Changing the XML is pretty straightforward but I’m not familiar with JSON.

Are there any how-tos for this? If it matters I’m on UI5/Vera3.

I was going to suggest that you could just download the Virtual Panel plugin and create it in a panel. However, this plugin does not work with UI5.
[url=http://forum.micasaverde.com/index.php/topic,31128.0.html]http://forum.micasaverde.com/index.php/topic,31128.0.html[/url]

Here is a link that describes the static json.
[url=http://wiki.micasaverde.com/index.php/Luup_plugins:_Static_JSON_file]http://wiki.micasaverde.com/index.php/Luup_plugins:_Static_JSON_file[/url]