I am using a C7 running firmware 2.2.6.130. I wanted to create a Button Controller rule to setConfigParameter for param 4 to 0 seconds, 1 byte. The Button Controller wouldn't let me put in zero as a "number" for my second parameter. I had to put it in as a string, and then it wouldn't let me add the third parameter.
I went over to Rule Machine and was able to enter 3 number params as 4, 0, 1 with no problem, so it seems like a definite bug in Hubitat's Basic Button app.
Stuart
Just tried to re-create this, and there does seem to be a problem with both the display and, as far as I can see, the command actually executing. (It does seem to get saved to the app's settings just fine.) My guess is that there is a minor coding error here, likely depending on overly-aggressive Groovy truth instead of != null or a similar check.
Tagging @bravenel. (To summarize, Button Controller doesn't seem to like 0 as a value for number parameters in Custom Actions.)
Yep, bug found. Fix in next hot fix release.
Great, both as to how fast you responded, tracked it down and have it fixed as well as finding out it wasn't me making some dumb mistake. 
Stuart
So what took you so long? 
From first post, finding the bug and having an update ready in an hour (based on time stamps) Seeing all this hard work is making me tired, going to have a nap now.
Download the Hubitat app
