Help with getting attributes into widget output

[RohanOprisko]

Hello!

So I am trying to create a custom routing app and I have everything except that I can't get the attributes from my route to appear in the output of my widget. The fields that I would bring would be text, and the sum of time and distance.  I talked to an ESRI worker at the UC and she suggested using arcade coupled with the popup option. As I believe this would be input in the output parameters of the config.json, I was trying to see how to do that but have found little examples so far. If anyone has any suggestions on where to begin it would be heavily appreciated. Also if I should try to do this somewhere else in the widget please let me know was well. The following are images are what I'm talking about. Thanks for the help!