Writing this from work, but it is something like this:
- go to post 86 and click on the link CWWilson08 provided.
- log into amazon in that link.
- wierd file shows up, copy to notepad
- go to one of your new echo devices in hubitat
- find the executeroutineid in the device
- search the notepad file for the routine you want. there will be a couple routine ids for that routine. I kept trying the different ones until I got it to work. The logs show an error if you don't get a good routineid.