Where to find HTR cfg dynamics files?

I only recently started messing with HTR. I use both FSX still and P3Dv5 and I’ve used HTR in both and I absolutely love it. The biggest problem with HTR for me is that I cannot find any dynamics configuration files for more helicopters than what’s provided with HTR. I spent at least several hours searching all over the internet and found absolutely nothing.

I need configuration files for Cera helicopters like their Bell 412 and the AS365, etc. as well as for other helicopters too. I am so desperate to find some, I have no idea how to make my own. Please, can anyone tell me where to find any?