This is an example of the ShowTable screen in DB_DataObject_FormBuilder_Frontend. The grouping and group collpasing below is experimental and not yet live. If you wish to play with it apply this patch for Structures_DataGrid. Try clicking on the group headers (one of the long green cells which says "Alien", "Horror", "option 1", "option 2", or "option 3") to see the group collapsing.

I have also added sub-record displaying capabilities to this page. This is not a Structures_DataGrid feature at the moment and is only set up for testing here. To test it, click on the >> in the View Attached Music column. The sub-records will show up to the right. You can open as many as you like. Click the << to remove the sub-record display.