Have you co-authored a document while in a Skype for Business meeting? It used to involve opening the document, sharing your desktop and all meeting attendees opening the document from a document library. Now the co-authoring experience is easier.
- At this time, the document must be located in OneDrive for Business. I expect support for Office 365 Groups Files won't be far behind. Though I think support for Team Sites will take longer to become available.
- The document must be shared with all participants in the meeting before co-authoring is possible in the meeting. With OneDrive for Business, consider sharing a folder with the attendees and placing your document within the folder.
- The co-authoring experience will be launched in Word Online. Though it is possible to open the document independently of the meeting in Word on your desktop and participate in co-authoring with the full set of tools available. Use Word 2016 to enjoy the new real-time co-authoring experience, viewing cursor position.