Hi @rsparks ,
I'm afraid it's not supported to just view custom form not view list in SharePoint currently.
So I suggest you use the first thinking.
Here's my test for your reference:
1) delect screen1(gallery) and screen2(display form)
2)Set the screen3's OnVisible:NewForm(Form1)
Set the edit form's data source: listname
Set the dedit form's DefaultMode: New
Set the submit button's OnSelect: SubmitForm(Form1);NewForm(Form1)
Then, users could only create record in the app.
It will not effect the edit form without gallery and displayform.
Best regards,
Community Support Team _ Phoebe Liu