Hi,
I just downloaded OnlyOffice today, it looks professional and I like that it is focused on working with MS document types first, however I think that onlyoffice would be a much more rounded office suite if there was support for diagramming and opening/editing visio files. This would provide a free alternative to visio (which I think is overpriced for what it is) and more feature parity with Libreoffice (adding an alternative to Libreoffice Draw). I understand it would be a large undertaking as it would mean adding an entirely new editor to the onlyoffice suite, but I was wondering if this was planned in future development.