1. Click the drop down beside your email ID and go to Settings.

2. Click Connect Google Drive.

3. Sign in to your Google account that you want to connect the drive to. 

4. If you see an error saying "This app isn't verified", click Advanced.

5. Click Go to scriptvocalizer.com (unsafe)

6. Click Allow to authorize ScriptVocalizer to access your Google Drive

7. You'd see a confirmation message in ScriptVocalizer saying "Google Account successfully connected!". Also see "Google Drive Connected! (Disconnect)" under Settings