All Multi-Engage settings are managed in the General category of Advanced Admin.
1. Click the menu button in the top left
2. Click the Admin section (key icon)
3. Click Advanced in the bottom right corner of the Admin panel
4. In General scroll down to the Multi-Engage section
Turn the Multi-Engage switch ON to allow operators on your site to engage with multiple visitors. This is a global switch for your entire site.
Be sure to consult your Glia Success Manager before enabling this functionality to ensure the settings are configured properly and your operators are comfortable using the new feature.