Edit Schedule 1 (Form 1040) - Other income

I need to update the 'Other income' (line eight of the 2019 Schedule 1 form) but can't find where in the step by step flow to put in the information and/or the $ amount.

 

When trying input the information on the form itself, the  'override' option under the Edit menu on the MAC is grayed out. 

 

Any advice is appreciated.