Where is a list of tracks in net classes?

A new PC assembly house asks about nets where impedance is specified (I think). We have just started to exchange emails, so I am not 100% sure what they want.
Where are all net reports.
Gerbers give dimension of nets, but it is best to study net information and reporting now.

Some of us simply indicate graphically where the impedance should be applied, I use the USER layer and draw a perimeter there. Remember that you must attach the layer stack you are using.

I have been looking around a bit for this, but can’t find a satisfactory answer.

In the schematic, you can set a color for a specific netclass, and this makes it stand out.
On the PCB you can also do this with Appearance Manager / Nets (tab)

And you can also highlight or select all tracks with a certain netclass by right clicking on it in the Net Classes view:
image

But I have not found an option to list all netnames with a certain netclass.