2. Select more than one cloud storage provider (Refer to Image-Step1)
3. You will need to select a default source provider (like dropbox or google drive).
4. The application asks you for the credentials of the selected default source provider. This is one time only.
Note:- You can select multiple cloud storage providers at a time but file sharing will be done with default source provider only.
If you want to change the default source provider, then you will need to change it in the dropdown selection and save your settings.