Access control to the WiKIDAdmin web UI is controlled by the Realm section of the file /opt/WiKID/tomcat/conf/server.xml.  The realm currently is set to use postgres:

        <Realm  className="org.apache.catalina.realm.JDBCRealm"
                driverName="org.postgresql.Driver"
                connectionURL="jdbc:postgresql://localhost:5432/wikid"
                connectionName="tomcat" connectionPassword="" digest="MD5"
                userTable="tomcat_users" userNameCol="username" userCredCol="password"
                userRoleTable="tomcat_roles" roleNameCol="role"/>

You can change this to use Active Directory by commenting the above out and adding a JNDI Realm:

      <!--  <Realm  className="org.apache.catalina.realm.JDBCRealm"
                driverName="org.postgresql.Driver"
                connectionURL="jdbc:postgresql://localhost:5432/wikid"
                connectionName="tomcat" connectionPassword="" digest="MD5"
                userTable="tomcat_users" userNameCol="username" userCredCol="password"
                userRoleTable="tomcat_roles" roleNameCol="role"/>    -->
        <Realm className="org.apache.catalina.realm.JNDIRealm" 
               adCompat="true"
               connectionName="AD_ADMIN_DN"
               connectionPassword="AD_ADMIN_DN_PASS"
               connectionURL="ldap://AD_IPADRESS:389"
               userBase="cn=Users,,BASE_DN"
               userSearch="(&amp;(objectClass=user)(sAMAccountName={0})(memberof=cn=WiKIDAdmin,cn=Users,dc=,BASE_DN))"
               userSubtree="true" 
               roleBase="cn=Users,,BASE_DN"
               roleName="cn"
               roleSearch="(member={0})"
               roleSubtree="false"
              />

Create a group called WiKIDAdmin in AD and place your Admin users in it.

Be sure to change AD_ADMIN_DN to an Admin AD login name, AD_ADMIN_DN_PASS to their password and BASE_DN to you DN (for example:  dc=wikidsystems,dc=com).  Change the IPADDRESS to the IP of a domain server.   Restart the WiKID server.

If you would like to be able to do both postgres and AD, use the Combined Realm option:

<Realm className="org.apache.catalina.realm.CombinedRealm" >
        <Realm  className="org.apache.catalina.realm.JDBCRealm"
                driverName="org.postgresql.Driver"
                connectionURL="jdbc:postgresql://localhost:5432/wikid"
                connectionName="tomcat" connectionPassword="" digest="MD5"
                userTable="tomcat_users" userNameCol="username" userCredCol="password"
                userRoleTable="tomcat_roles" roleNameCol="role"/>
       <!--
        Create a group in AD called WiKIDAdmin and assign all relevant users. Then change the 
        values of AD_ADMIN_DN, AD_ADMIN_PASS, and BASE_DN to match your AD configuration.
        -->
        <Realm className="org.apache.catalina.realm.JNDIRealm" 
           adCompat="true"
           connectionName="AD_ADMIN_DN"
           connectionPassword="AD_ADMIN_PASS"
           connectionURL="ldap://IPADDRESS:389"
           userBase="cn=Users,BASE_DN"
           userSearch="(&amp;(objectClass=user)(sAMAccountName={0})(memberof=cn=WiKIDAdmin,cn=Users,BASE_DN))"
           userSubtree="true" 
           roleBase="cn=Users,BASE_DN"
           roleName="cn"
           roleSearch="(member={0})"
           roleSubtree="false"
          />
</Realm>

Restart the WiKID server to have the changes take effect!