I'd like to do something simple like input in the search box "de123, de122, de145, us234" then have a search result with the items so I can easily manage them.
Is there a way to do this? I used to work like this in bugzilla, I could even do mass edit after my search.
The closest you can get to this is probably adding a custom grid app to your dashboard and setting the query in the settings to be what you're looking for:
((FormattedID = DE123) OR (FormattedID = DE122))
You can inline edit and bulk edit the matching results in the grid.