When you create items with a Page Design, you can connect to your Google Drive through the Integrations menu. This will prevent the need to log in to your account every time you want to create a Craft.io Page design.
To connect to Google Drive
Go to the Settings menu (cogwheel button) in the top right corner of your screen, and Select Integrations from the drop-down menu:
Note: Only users with "Admin" access permission can access the Integrations menu to connect new integrations.
Click on Connect next to Google Drive:
And then select the Google account to connect to.
Note: You will be prompted by Google to allow Craft to view the files and metadata in your files stored on your Google Drive.
The Integrations panel will show that you are now connected to your Google Drive.