sibleyd
I often end up having a bunch of attachments to a single thought.

I may have the original document and then several revisions of the document.

I will usually have the document in both doc and pdf. 

I very likely will have a series of emails sending it to various people

I may have multiple fax transmission receipts.

I may also have email responses or letter responses.

Sometimes, I end up with 20 or even more attachments to a single thought 

It would be useful to be able to arrange the attachments in a structured manner (like a collapsible outline)

Yes, the attachments could be broken into related sub thoughts, but I think it is generally best and quickest to have all the attachments related to a single document in one thought. Making an analogy to my brain, all these attachments really are a single "thought." 

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sibleyd
It just occurred to me that I could possibly achieve the result with a little difficulty by opening the attachment folder and creating subfolders. I have never done this being not sure whether this would mess up the brain. Would this be a permissible practice? 
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sibleyd
I am suggesting opening the attachment folder using the brain "show in explorer" feature not opening the folder entirely outside the brain. 
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Harlan
Yes, version 9 added support folders inside of thoughts, including sync of the content therein. You will lose the ability to preview the items inside of the folders within TheBrain however.
Regards,
-Harlan
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sibleyd
Thanks
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metta
+1 for the option to sort (list) attachments by type

@sibleyd: Would this feature request at least partially meet your need?

This would provide a simple form of organizational structure while retraining the option of previewing the attachments.
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