To enable beta features in Aeries Web just add <Beta>True</Beta> line to the AppSettings.config file located in your AppSettings folder.
Example:
<?xml version="1.0" encoding="utf-8"?>
<AppSettings>
<SystemType>Admin</SystemType>
<LimitToCurrentPortalType>True</LimitToCurrentPortalType>
<DistrictName>EagleUSD</DistrictName>
<Beta>True</Beta>
</AppSettings>