Hi Everyone – thank you for your patience. As was commented by someone below, Suphatra is no longer at Microsoft, but rest assured we are working on this feature.
~ AlexAnonymous commented
Would welcome an indication of when this functionality will be available. One question I have is how will any files associated with the private channel be stored? I am hoping that it won't be a folder in the SharePoint site with unique permissions. Our preference would be a separate document library as we are trying to reduce the use of folders (in preference to metadata) and are discouraging the breaking of permissions inheritance below a document library.
7 votesAnonymous commented
Require the ability to locate a file already stored within a SharePoint document library which will result in a link to that file being posted in a conversation