[Mastering Mobile manipulation] I could not understand what is this meaning

I have copied the file "rbkairos_ur5_egh.urdf.xacro"
Refer to the instruction, do I need to change for the original file?

Hello @hki,

No, you don’t need to do any modification to the rbkairos_ur5_egh.urdf.xacro file. In the instructions, it’s just telling you to copy it to your catkin_ws so that it is easier to find for you. This file is the one you are going to load into the MoveIt Setup Assistant to create your MoveIt package.

Best,