Amazon S3 key for all components?

Hello,

Do we use the same keys - and Bucket - for all components or do we need to create one for each extension (ES, ED) ?

At the moment I used the same keys and Bucket path for ES and ED.
It seems the ED attachment is delivered from Amazon but I can't find the attachment in S3 bucket...but I am not sure
This is the url of the attachment:
Thumbnail:
https://s3-eu-west-1.amazonaws.com/MY_WEBSITE/images/media/discuss/attachments/56f42c4d050e270366d6b85957e259e2_thumb

Popup:
https://www.MY_WEBSITE/en/discussions?controller=attachment&;task=downloadAmazon&tmpl=component&id=1

The only path I see in the S3 bucket is:
bucket_name/images/media/community/...

Should there be an other path like:
bucket_name/images/media/discuss/...

Thank you