Add a new Memo field in "Test Plan" and I would like it displayed when we run the test in "Test Lab"

Hi,

I would like to add a new Memo field in the Test Plan module (may be next to Description tab, please refer Image 1) and I would like the same field to be displayed when we Run the test in the "Test Lab" module (please refer Image 2).

I am new to QC and your help would be highly appreciated.