Reply To: How to Extrude Edges & Inset Outward in Blender

It depends, Omar, how much you are going to do, modeling-wise, if this is the only thing, it would be more work to set up a Mirror Modifier, but in other cases it might save you 99% of the work, or more.

@Blendash , you can also first Scale these Edges:

and after that,  Scale the whole model to get the center square back to its original size.

And there’s probably 50 more ways to do this 😉