Set Analysis Question

[NevoPotok]

Hi,

I have a model which display feature usage and I want to display only accounts that use specific feature more than X (variable) time.

I tried to use this exp. but it didn't work:

sum( {$<AccountID = P({<"=Sum(Aggr(Sum(Usage),AccountID,FeatureID))={>$(X)"} >})>} Usage )

Explanation: return only the AccountID the sum of the usage by FeatureID is greater than X, and only for those AccountID to Sum the Usage.

Appreciate any assistance 

[NevoPotok]

@sunny_talwar  @swuehl  really appreciate if one of you can assist with this issue

Thanks