Although at the current time the Planner models only one user/couple per plan, there are a few ways to model changing marital status. The best option is to compare the differences between a single and married status is begin with a spouse in the plan. Then enter a shortened longevity date and/or turn off or remove items.
Here are a few areas you may wish to adjust:
Life Insurance: You may wish to enter the death benefit of any relevant life insurance policies in My Plan > Income > Windfalls.
Income: If you have entered income streams from work, pensions or annuities for a spouse, they may be shortened in different scenarios using the stop age you desire. They will also end at the spouse's longevity date if there is no survivor benefit.
Savings: Accounts may not be deleted or reduced in different scenarios, but you may deplete the assets by entering tax deductible Disbursements from the accounts (found in My Plan > Expenses and Healthcare).
Expenses: Expenses are not shared between scenarios once the data had been copied and you may modify as as you desire.
Social Security: You may wish to exclude the Social Security benefit of one spouse.
IRMAA: When one spouse passes the Planner will use the AGI for the survivor in calculating IRMAA.
Taxes: When one spouse passes the Planner will use the AGI for the survivor in calculating income taxes.