[Orgmode] Attachment feature - Can I have custom directories?

[Jason Jackson]

There are many times where I would like to associate an org-mode item with a specific directory of my choosing for attachment directory.

Such that, C-c C-a f would open for example ~/docs/project1
and C-c C-a o would open the file inside

Of course, I still like the existing functionality of generating random directory names too. 

Can org-mode do this?

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Also I should mention C-c C-a l (for symbolic links) just copies the file on the windows platform, can we have it create a shortcut instead?

Cheers,
Jason