by acroyear » Tue Jul 05, 2016 6:56 pm
Some apps can do that because the API supports it (shameless plug: SubFire is one of them; others include Polysonic (Chrome) and AVSub (IOS)), but the main Web UI is exclusively folder structure at this time.
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Joe Shelby
http://subfiresuite.com/
http://subfireplayer.net/