Brief Summary: Childboards as Dropdown allows you to convert the normal list of Child Boards into a dropdown input to conserve space and improve the forum layout.
You can enable or disable this modification from the admin panel. In addition, you can define a number of childboards allowed to be displayed normally, before that board is converted to the new layout. This allows you to only convert boards with "X" amount of childboards to a dropdown so boards with few childboards still display normally. You do have the option to over-ride and have all boards convert to the new layout however.
The original version of this modification was written by Rumbaar.