The idea: When creating an Update Request for a parent row, allow the selection and inclusion of Children rows.
When creating an Update Request, you can specify which columns you want to include in the request. I recently encountered a situation where I wanted a user to update a section of rows (Parent + 5-6 Children). In this situation I am unable to include multiple rows in the request. I would need to create an Update Request for each row. I think adding a Parent/Children functionality could be helpful.
