We're in the process of switching from SW2015 to SW2018 and someone ask me about the "@" configuration. I've never heard of it. What is it? I ask if they meant custom properties and they said it was a configuration.
I'm wondering if the VAR in Europe had set this up and the templates got loaded with it because some of the ported data from our PDM system, Smarteam, now has that in it in the new PDM Pro database.