Master/Child Test Plans

My Question is related to Master Test Plan and Child Test Plan.

After creating Master Test Plan and child test plan 1, I would like another child test plan2, child test plan3, child test plan4, child test plan5 beneath the child test plan 1. Can this be done in RQM with the latest version.

Project
SOF Master Test plan (Master Test Plan)
SOF Functional Test Plan (Child Test plan)
SOF Test Plan 1
Test Cases
Requirements
SOF Test Plan 2
Test Cases
Requirements
SOF Test Plan 3
Test Cases
Requirements
SOF Test Plan 4
Test Cases
Requirements

Thanks
Trinity

RQM only supports a single level of test plan hierarchy. A test plan that is a child of another test plan cannot itself have a child test plan.