How would you handle a temporary panel?

Let’s say I want to dedicate part of my screen to temporary info.
Maybe tracking for an order in transit, following status of a flight, or something else that may be relevant for a few days and then lose all relevance forever.

Instead of leaving a tab open in my browser and refreshing every few minutes, how could that be implemented in THR, without having to edit the template every time I want to add or remove content?

Maybe having a place “somewhere” where a url can be stored and changed, and then the app reads that url, pull its contents and displays it?

You could use a local web server and just scrape the info from the page?