Your PCB may not have holes orientated where you can just do a circular pattern or you are assembling a part where you want to install a lot of something like bolts or screws that are the same part with similar mates but you do not want to assemble each one individually.
Here is how to use the "Copy with Mates" feature.
I could not open your files so I made a fast dirty model just to show you how the "copy with mates" works.
You can place one and then "copy with mates" and choose the mate (like concentric), that will be different and then just click on each hole and it will place a pin.
Hi stephen. I didn't know this feature. Thanks for detailed explanation.
Also very useful:
check "Feature driven patterns"
Why you just not use circular pattern ?
In my sw book autor recommends this method.
It is fastest. Just one click and enter the number of elements.
What if the the holes in the PCB are not in a circle or you want things other that pins at some locations? As always there are more than one way to do it.