Use resources to import csv file into BAS. Define resource type as "Lines from file" and set it to "Use each line one time" if you need that behavior. Than just put resource variable in place of URL.
Thank you @support it seems that even >CSS> :nth-child(2) it changes, but after using inspect sometimes it becomes nth-child(3). I just put to click on (3) after (2) and no issues so far.