There are multiple ways to extract fields without using the interactive field extractor. If you are comfortable with regex, You can try to use the |rex command to start building your extractions in search. After that you can just place them on a props.conf, or add them via settings >> fields >> field extractions.
If you are not comfortable with regex, you can post a sample of your data and we can help you out with that. 😉
------------ Hope I was able to help you. If so, some karma would be appreciated.