If you have tried to train end users, you know that most users will not go to training classes. You also know that people just try to figure stuff out without reviewing documentation. So, as SharePoint designers we have to find ways to improve the user experience of the SharePoint interface to support want the users need to know about and click to complete their tasks.
On a recent project my team was working with multiple Content Types that used templates in a single document library.
When there is more than 1 content type added to a library, the default user interface for a library in Sharepoint 2013 often leads the user away from the ribbon's File tab due the proximity of the "new document" control to the library space.
The new document link will not allow the user to pick from available content types and it will load the content type that has been set as the default. The drag files here can also be problematic if you want users to use the templates associated with the Content Types.
In this example, we have a combination of Content Types available in this library. The only way to access the Content Types is from the File tab and the New Document dropdown.
To overcome this issue with the user interface, you can update the page and change the default tool bar settings for the document library webpart. Click the Gear(1) and select Edit Page (2).
Click the dropdown arrow in the right corner (3) of the Library web part and select Edit web part (4).
In the web part properties, click the Toolbar Type dropdown and select Show Toolbar (5) and click OK.
Click the Page tab (6) and Stop Editing (7).
The toolbar will be replaced with the SharePoint 2007 version toolbar.
Now the user will be prompted to click the New dropdown and will be able to pick from the available choices due to the proximity of the control to the location of the document library contents. Sweet.