There is: How to Access Advanced Settings for My ZEN34 Remote Switch on Hubitat - Zooz Support Center. That one links to the krlaframboise driver; he's done quite a few like this.
I also wrote one, which I don't think I ever posted about but should be pretty simple: Hubitat/drivers/zooz/zooz-zen34-remote.groovy at master 路 RMoRobert/Hubitat 路 GitHub. (EDIT: Posted about it now; see: [RELEASE] Zooz ZEN34). The big difference I can see is that, like most of my other button/remote/switch/dimmer drivers, I use standard button events rather than custom attributes, so apps like Button Controller can work with them natively. There is some simple math to convert, given that Hubitat's button capabilities max out at double taps (which I ignore since it doesn't help here): taps 1-5 up are buttons 1, 3, 5, 7, and 9 pushed, while taps down are buttons 2, 4, 6, 8, and 10. Held and released also work on buttons 1 and 2.
As for the device itself, I have a few (plus some in box I never found a place to put...), and the batteries lasted about 9 months on one but is still going more than a year on the others. There may have been some early firmware updates that helped. I still prefer Picos since I doubt these are going to reach the 10 years they claim, but they have the advantage of looking more like a "regular" paddle switch and not needing a Lutron system, and they're not too expensive.
