HELP! What tool can manage my HP thin clients? HP Device Manager is so wonky!

I am in depserate need of a management tool kit that can manage my scattered HP thin clients. I know that HP makes a freeware solution called "HP Device Manager", so I installed that on a server but I'm having a horrible time getting it to work for capturing images. It can reboot them, patch them, do lots of stuff, but capturing an image relies on a "repository" setup that tests fine and says it's working, but then every attempt at image capture fails anyway. I have uninstalled and reinstalled it, comfigured it every possible way they mention in their (crappy) documentation, but I'm spending way too much time trying to get the product working. It’s one of those free-but-you’re-on-your-own-for-support types of products so HP doesn’t offer any support, not really, other than their (really bad) documentation ... which I can't even find for version 5.0 .. it appears that they only publish instructions for a previous version, 4.7.

Can anyone offer any suggestions for a third-party tool that can manage HP (T630) thin clients running Windows 10 IoT? Ideally it would be able to manage other brands, as well, but right now if I could just find something that would work for managing my HPs, that would be enough. If it isn't free, that's totally fine, I just can't keep beating my head against the wall with the HP Device Manager, so I really hope that it's not my only option.

Any ideas?