TurboTax does not completely handle this situation. The only way to do it is to write the notation on Schedule 2 line 4 by hand after you print your tax return. See the following FAQ for instructions to have TurboTax remove the self-employment tax without putting anything on Schedule 2 line 4.
How do I pay zero Social Security (SS) taxes due to a totalization agreement?
Since you have removed the self-employment tax, you might not have any other entries on Schedule 2, in which case it will not be included in your tax return. If that happens, open Schedule 2 in forms mode, print a blank copy, and write the notation on it. Include it in your tax return after Schedule 1, or after Form 1040 if you do not have Schedule 1.
It would be the same in Home & Business.
