To change how an Item appears on the Location, Equipment, and Properties cards:
- navigate to the Item
- add “default list widget” metadata to define how you want to widget to appear
- refresh the page
See Example Custom List Widgets for a bunch fo examples.
Note, if you have a lot of Items that you want to use the same widget you should create a Custom Widget (under Developer Tools) and reuse that as your default list widget for your similar Items.
For the popup, you need to change the Action on the widget to open the popup.
Note, all of the widgets shown in those cards are list widgets.