setdeviceproperty

/JSON?request=setdeviceproperty&property=NAME&value=VALUE

Sets a specific property on a device using the property name. For example, the "Name" of a device may be set using:

/JSON?request=setdeviceproperty&property=Name&value=NewName

See the device section in the scripting reference in the HS4 user documentation for a list of device properties.