[GNC] Can you move a Liability Account to a "sub-account" in Liabilities?

[Fran_3]

3 items listed under Liabilities... 
Liability ALiability BLiability Ceach to a different entity but related based on certain criteria.
We want to setup another Liability account "Liabilities ABC" and then move the 3 above under it as "sub-accounts" like ...
Liabilities- Liabilities ABC-- Liability A-- Liability B-- Liability C
That way we can see the total of the 3 or each individual total...
The Question: Is there any way to do this without having to delete A, B, C, and re-creating them under Liabilities ABC ?
Thanks for any help.