title: Advice regarding modification to NetTiers
body: <p>I'm assesing using NetTiers for my next project.</p>
  
  <p>The issue is: 
  Every table in my schema has a field AccountId. With every request to the DAL I want it to be a requirement that the AccountId is passed and used as a filter in the query.</p>
  
  <p>It would be acceptable if an extra overload was generated that used this paramater.</p>
  
  <p>I suspect this functionality is not built in so can anyone offer any advice about where to begin with the modification of the templates to add it?</p>