I am trying to test the 'set level in x seconds' feature of the virtual shade but it doesn't appear that the device accepts the time element of the command and defaults to the transition time in the device properties. Am I missing something or is this broken?
Appears you're right (though for a better test, I'd leave webCoRE out of the picture and just try the "Set Level" command directly from the device page, which is what I did):
This:
plus this:
gives this:
...with the logs showing that the setLevel(50,15) ignored the transition time and just used the "transition time" preference value instead.
Not sure who wrote this driver, but staff are pretty good at looking at the forums, so I'm sure the right person will see this. If not, we can try tagging someone in the post if it's been a while without a fix. 
