Yes! PubHTML5's integration with Google Analytics allows you to track your digital books easily. For inserting your ID just follow these steps:
Step1. Go to the "Custom Settings" tab and choose the "Simple Mode" option.
Step2. Find the "Google Analytics ID" option by searching it in the "Search" box.
Step3. Enter your ID in the corresponding field.
Step4. Click the "Apply Change" button to save the setting.