I need to access a Scality bucket via SAS (e.g. connect SAS to the Scality API, view the files in the bucket and then choose the ones I want to import). I have a user name, secret access and secret access key to access the api. I've found a code to create a libname with the s3 option, but I'm under the impression that this requires prior configuration with AWS? Can anyone confirm that going through AWS is the only solution please ?