How to map LinkedIn profiles to imported Candidate Records

How to map LinkedIn profiles to imported Candidate Records

Hi Team, 

I am importing a few records in CSV format, it asks me to map the fields with column names in the CSV. However, I am not able to find any mapping field for LinkedIn profiles. Is it possible to map LinkedIn with Candidates via CSV only. I don't want to do this manually for every record. 

Thanks, 
Swati Gautam