How to go to a next form from 1 form for adding multiple data and then return to the previous form without refreshing that page in bootstrap modal

I want to Add Multiple data in forms on different pages(Bootstrap Modal) without refreshing that page.
here is the Picture
enter image description here

Like this i want to add functionality by clicking on next button and go to next form for adding multiple data without refreshing that page and want to insert data in phpmyadmin database

Please give me complete solution Thank you

Source: Ask PHP