Recordtype link in Editable grid

Hi, You can use recordLink function. In this function you would need to provide your record type and an identifier( like Id or any primary key which uniquely identifies the record). You can also go through below documentation to know further about this function
https://docs.appian.com/suite/help/22.1/Record_Link_Component.html

You can either use a!recordLink() or you can use safeLink() by combining it with urlforreccord() function.