When adding new students the record does not come up with the information that you have entered and the IGNORE options are not available.
What you can do is change something about the name or birthdate or gender of the person you are trying to find in your search.
eg. if you are looking for Deb Pflanzner with a birthdate of 2/6/2009 and a gender of Female, change it to Deb Pflanzner with a birthdate of 1/1/2020 and a gender of MALE
This should trigger the search to then show you the options to IGNORE: Once you have those options then you should be able to find your student and ADD them.
