OK, so, from reading that thread, it appears you need to set parameter 5 to true or false. I'm guessing you're using the generic scene dimmer driver on Hubitat, which doesn't expose that. You can, however, temporarily switch the driver for this device to the "Basic Z-Wave Tool" driver they recently published to change this parameter yourself, then switch it back. Here is that tool: Super basic Z-Wave parameter tool
As for how to do this with that, the Z-Wave tool will ask for three values: parameter number, size, and value. I can't find this information documented in the only manual I can find for the dimmer, but at least the thread says it's parameter 5 and since the HomeSeer UI calls it "low dimming threshold," I'm guessing you need to set the value to "true" (and the default is "false"). Size is anyone's guess, but most of their parameters that are documented are 1 byte (which is certainly more than enough to hold a binary value), so I'd try that. Also, you can't literally use "true" and "false" here--I'm guessing those are friendly names in the HomeSeer UI that knows about these switches--so you'll probably need "1" or "0" (or perhaps another numeric value; again, these are guesses given the lack of documentation). My suggested values to use with this Z-Wave tool would then be would then be 5, 1, and 1 respectively.
When you're done, switch the driver back to the one you were using before. If what you just did doesn't work, you might try seeing what the ST DTH someone posted in that thread does (I can't view it because I'm not an HS forum member)--maybe I guessed wrong on the size or value of the parameter ("0" as a value would be easy to try; it's unlikely the size is larger though certainly possible, and I'm pretty sure 5 is the correct parameter since that's what they said and that's not already taken from what I see in existing documentation).
Hope this helps!
