Is it Possible to Duplicate Row and it's Sub Rows - Linking Data

Hello! I'm new to using SmartSheet, and I recently downloaded the Payroll Register Template. I'm curious if there's a way to duplicate a row along with all its sub-rows, and if so, could you provide guidance on how to achieve this??

Also wondering if there's a method to link it to a separate sheet where I've compiled a list of all employees into the Payroll Register Employee column. If this is possible, could you please provide guidance on how to set up this linkage?