S3 bucket decryption key or string option is not available for downloading encrypted files from S3

S3 bucket decryption key or string option is not available for downloading encrypted files from S3 bucket. I am able to login to S3 bucket using key and pass for S3 bucket and access files and directories but while trying to download encrypted files then it is looking for decryption key or string for download as decryption parameter and there is no option for provide this parameter in WINSCP GUI . Please advise.

WinSCP indeed does not support encrypted files yet.

Will see if more people ask for this.