Specify 'composite requirement' where children exist

Hi,

I'd like for the existing child/nested requirements functionality to be extended as such:

Let say's I have the following requirement defined:

REQ-5 

.....I then add a series of child requirements under this, REQ-5.1, REQ-5.2, REQ-5.3...etc

Ideally, when I open up the details for REQ-5 there would be an option available - perhaps in the form of a checkbox - that says 'Composite Requirement?'

If I choose that option, then all of the associated child requirements (REQ-5.x) would get automatically added as 'Referenced Requirements' for REQ-5.

If I were to unselect the option, then all of the associated child requirements (REQ-5.x) would get automatically removed from 'Referenced Requirements' for REQ-5.

Furthermore, under 'File => Options => General' there would ideally be an option to set the default value.   ie. whereby one could set the default value for the 'Composite Requirement?' property to be either on or off.

Thanks

Adam