Is there any way to create fields reports users can enter data into?

I am using Crystal XI to develop reports for my company and have not received any formal training on it. I'm learning it fairly well through the help files.

One of the reports I need to create summarizes our scrap, rework, and additional incurred expenses for our monthly quality reports. Most of the information is stored in the main program used by all employees, a very small amount of it is not. I have created sub-reports for each of the different types of costs that are tracked in the system.

Is there any way to create an area on the report that our QA people can use to enter the items not tracked in the main system? I am imagining that it would be through another sub-report of some kind, but do not know how to create the fields needed.

Thank you very much for any assistance you can provide, even if it is to tell me "You can't do that, ma'am..." At least then I would know and wouldn't beat my head against the desk trying to figure out how to do it.