Best answer by Ssherjj
Welcome to the Webroot Community,
I am sorry to tell you that this function is no longer available since this release in Android version 5.5.3 (Released March 7, 2019).
- Upgraded:The Anti-virus analysis engine automatically scans every new file or app loaded on the device. Because the engine scans new items as they are loaded onto the device, detection is immediate and the scan has virtually no impact on the device performance.
- We have added the Android Oreo and Pie for Google Play Store's policy compliance.
- Removed:Shield menu is no longer needed(analysis has been automated for all users).
- SMS Blocker functionality.
- Call Blocker functionality.
- Dialer Shield blocker functionality.
- Schedule functionality (scans have been automated).