How to add here the data from the extra fields?
Example. Field about me
We don’t have support built in for this kind of stuff, we think it would be too noisy and distract from conversation especially since you can simply click on avatar and see the info there.
If you wanted to make something like this you would have to create a custom plugin.
To me this looks like a signature in a different location. I haven’t tried it, but it could be worth your time to give this plugin a try.