Where and how do i transfer my spouses disability claim to my return

When using TurboTax Standard, click on the heading titled Deductions and select Disability amount.  Answer Yes to the question, "Does your spouse qualify for this claim?"  Answer Yes to the question, "If your spouse doesn't need to claim the full disability amount on his or her tax return, do you wish to transfer any remaining credits to your spouse?"  Click on Continue and you will have the amount transferred to your return.