The "drag files here" option is missing for a list in SharePoint Online or SharePoint 2013 on-premises
In Microsoft SharePoint Online or Microsoft SharePoint 2013 on-premises, the option to "drag files here" for a list is missing.
To resolve this problem, install the latest version of your web browser. Or, install Microsoft Office 2013 or SharePoint Designer 2013.
This issue occurs because the "drag files here" feature requires software that supports HTML5.
When Office 2013 or SharePoint Designer 2013 is installed on the client computer, it installs the SharePoint Drag/Upload Control. This control is required for this feature to work if your browser doesn't support HTML5.
For more information, see Upload files to a library.
Still need help? Go to Microsoft Community.