How do I add a shared folder to my drive?
Option 1: Find the shared folder/file in your drive
Go to drive.google.com.
On the left, click Shared with me.
Click the files or folders you want to add to your drive.
In the top right, click Add to my Drive Add to My Drive.
Click Move To.
Choose the folder you want to add to.
Click Move here.
Option 2: Add shared folder/file through a shared link
Click on the shared folder/file
In the top right, click Add to my Drive Add to My Drive.
Open your drive and you will see the shared folder/file in the root of your drive
Select the folder/file and click "move to" and move to the desired location
Overview with screenshots can be found here: https://goo.gl/LJmRpC
Option 2: Add shared folder/file through a shared link