The addition of "Organisations" in V4 was a major step in bringing together users within the same place, however the abvaility to have parent organisations would propel this feature into a very powerful structure indeed. We have "Organisations" who have "Users", however those Organisations are then owned by a "Parent". Users in the parent should be able to view and report on tickets for all the "child organisations". Users in the Child organisations should have visibility on thier organisations tickets only, and users (if permissions restrict) should only have access to thier own tickets. Am i the only one looking for this hierachy???