Hi @Anonymous
Your screenshot shows that the field is required. You must change this to not required as the field should be blank if no appt is required. Unlock the card containing the date field. Add a toggle control to the card and set the properties as follows:
FalseText: 'No future appt necessary'
TrueText: 'Make future appt'
OnCheck: 'UpdateContext({showappt:true})
Visible: !showappt
Default: false
Select all of the controls in the card and set their Visible properties to showappt
Set the OnVisible property of the screen to UpdateContext({showappt:false})
Set the OnSuccess property of the form to Reset(Toggle1)
Based on these instructions, when the screen is displayed, the toggle will show No future appt necessary. When the toggle is checked, then it will disappear and the date and time controls will become visible. Once the data in the form is saved, the toggle will reset back to No appt necessary and become visible when the screen is reopened.

