I’m following the FAQ for how to configure a DTH. I’m an IT guy and used to be a programmer but I’m having a hard time :). The steps are as follows (with my experience added) …
DT1) Copy the code from the author. Done
DT2) Sign in to the Developers section of the SmartThings website. (To get there, first click on “Community” at the top right of this page, then click on “Developer Tools” in the top right of that next page.) Done
DT3 Choose Device Handlers, then Add a New Device Handler from Code. Done
DT4) Paste in the code you copied, change anything necessary based on the author’s instructions, then CREATE it for yourself. Done
DT5) Once the Device Handler is published in your own library, select MY DEVICES in the IDE and choose the specific device you want to have use that new device handler. Done - choose the ‘Kitchen Dimmer’ in my case; up pops lots of info about the z-wave plus device
DT6) Edit the Device so that it uses that device type handler. _OK - here’s where I’m stuck. I click ‘edit’ at the bottom, and now I get to change some settings. But I don’t see anything obvious to flip it over to the new handler. I see ‘Type’ … and it’s currently set to Zwave Dimmer Switch Generic … I look through the list but don’t see my device. Is this the place …? _
HA - found it - it was in the list for ‘Type’, but it was at the very bottom of the list, not alpha like everything else 
Thanks for listening guys while I muddled through this 