Reading configuration from Database Table

[digitlimit]

I wish to store backup-manager configuration to a database table.

 'dropbox' => [
        'type' => 'DropboxV2',
        'token' => env('DROPBOX_TOKEN'),
        'key' => env('DROPBOX_KEY'),
        'secret' => env('DROPBOX_SECRET'),
        'app' => env('DROPBOX_APP'),
        'root' => env('DROPBOX_ROOT'),
    ],
    's3' => [
        'type' => 'AwsS3',
        'key'    => env('AWS_ACCESS_KEY_ID'),
        'secret' => env('AWS_SECRET_ACCESS_KEY'),
        'region' => env('AWS_DEFAULT_REGION'),
        'bucket' => env('AWS_BUCKET'),
        'root'   => '',
    ],

How do I force backup manager to use configuration store in my database table backup_settings