An individual filing as a surviving spouse can treat the qualifying child in one of two ways:

1. Claim the child as a dependent, or

2. Not claim the child as a dependent.

To choose second option, above, go to Screen 2 - Dependents, from Type select "Head of household or qualifying widow(er) only. Not a dependent". (It's the fourth option in the dropdown.)

The dependent's name will now appear in the Filing Status box, not in the Dependents section.