I'm here to help that you insert a row in Journal Entry, dconnerty.
You can click the Add lines button at the bottom part if you want to add additional lines to your JE. For existing entries, you'll have to add a line first. Then, enter the information. Once done, edit the second line with the correct information.
For future reference, you can print a single journal entry or multiple entries on one report. Please read this article for more information and detailed steps: Print Journal Entry Report.
Feel free to touch base with us if there's anything else you need about Journal Entry. I'm always around to help you anytime.