Question: Remove VLAN info in the shapes

[Roeftie]

Hi,

I'm trying to create a diagram with no VLAN information in the shapes.
I've read the docs and in the question Q3, the solution should be
"diagram" : {
node_text = '{node.name}
{node.ios}
{node.plat}'
}

So I have added this to the configuration file natlas.conf , but that doesn't work.
So in which file should I make the above changes?

Thanks for your help.