MasterPress 1.1.6 is now availale. This release is a minor release, containing a new option for Related Post fields. You are now able to select what post statuses should be available in the related post field.
WOOF :: has_children()
Checks if the current WordPress WOOF::object has any children.
Note: this will only return meaningful results if the current object is a post or term (and the post type / taxonomy is hierarchical respectively).