title: Show multiple relationship records in single view
body: <p>I have an entity (asset) that has an N:1 relationship with Parent Account and Organisation (both the same Account entities)</p>
  
  <p>In the account entity, I can see either assets linked to it via parent account, or assets linked to it via organisation account, but not both (as far as I can work out).</p>
  
  <p>I can't change the schema to have parent accounts as one entity and organisation accounts as another entity.</p>
  
  <p>Is it possible to show both relationships in one sub-grid, or am I purely limited to having two separate sub-grids on the account entity?</p>