I just recently discovered RaiDrive, until now i used Cyberduck for such things, but never again!
One thing i still use cyberduck for though, is when connecting to Digital Ocean Spaces (https://www.digitalocean.com/products/spaces/) as i can’t configure the S3 endpoints, region etc. in RaiDrive 
Therefor my request goes toward letting us customize the endpoints, region etc. too, so that RaiDrive can be used with all S3 compatible systems too.
This would be a really nice addition to an awesome piece of software 
