Instructions
For the latest and most accurate information regarding how to enable Files On-Demand in OneDrive for Business, please visit Microsoft's support website at https://support.microsoft.com/en-us/office/sync-files-with-onedrive-files-on-demand-62e8d748-7877-420f-b600-24b56562aa70.
Outcome
Files On-Demand has been enabled and you can designate which files or folders that you want to be offline or online only.