I am searching a group of files for a specific text. I get some files back in the results that have that text. Is it possible to configure Opus so that when I select one of the files the specific text will show up in a display panel? Or do I need to open each file and search for that specific text? For example, I have doing research on a topic and have collected a number of notes and want to be able to quickly search my notes without opening each document. Thanks.
Not currently, no. Especially if they are PDF or Word documents or similar, since those are third party viewers (by Adobe, Microsoft, etc.) which don't have an API for highlighting matches.
File Center is what you are looking for: https://www.filecenterdms.com/why-filecenter.html
It's pricey but if you work with documents a lot it's worth it.