External account tab of account settings gives you option to configure google, dropbox or both to your Fusionmint account. Adding google and dropbox account in Fusionmint lets you access files and folders present in these apps accessible from Fusionmint.
Here is how you can connect with the apps:
1.Go to External Account tab under account setup.
2.Click on connect of the app you want to connect with.
3. Sign in to your google/dropbox account.
4. Allow access to Fusionmint to use your information on Google Drive/ Dropbox by clicking on allow.
5. The connected account an be seen as in the image below.
