Facebook accountkit integration in Signup page

Question

I have successfully integrated Facebook account kit. Now I want to use it within my signup page. As Facebook account kit provide a different page for writing a phone number and another for verify otp. But I want to take phone number from signup page and directly go to verification page (enter otp page).

I have gone through the documentation

I have followed all steps and successfully created a simple demo as per the doc.

Please let me know if you required any code. Please suggest any links or tutorial for the same