A system and methodology that can utilize attachment data collected by a set of femto access points (FAPs) to localize, predict, and/or weight potential wireless communication traffic within and between areas, is provided. Moreover, the attachment data can be indicative of user equipment (UE) density/traffic within coverage areas of respective femtocells. The attachment data can be consolidated and analyzed to identify location and motion of a UE “swarm”. Moreover an automatic cell planning (ACP) component can be employed to utilize the attachment data for determining an optimal macro site and optimal antenna setting(s) that facilitate steering/tuning the macro antenna beam to focus upon the swarm area. In addition, the ACP component can facilitate reconfiguration of the macro antenna beam as reported swarm concentrations shift between the FAPs.