Online application - MN1 (No option to select section1(3))

Dear Experts,
Thanks for all your support....
Another question before I submit...

q: For children born in UK and now either parents are settled.
With new online application in place, we dont get option to mention Section 1(3) for childern born in UK.

When adding kids application with ours, we get below option:
a1: Consideration under British Nationality Act:
Choose which category to apply under. You are a child under 18 and:
Option 1 :You were born in the UK
Option 2: You were born outside the UK

Option 1 is selected.

a2: Register child as British citizen
Are either of the parents of the child (as stated in this application) applying for naturalisation as a British citizen on an AN form?
Option "Yes" selected.

After that usual details for applicant to be entered.

So there is no option for any sections to select.

Let me know if you guys followed the same...
Regards,

No need to put it in. HO know the laws.

There was no option to mention the section 1(3) in online mode unlike there was option in paper application.
Thank you.