How to Edit Table Source in Clay After Refreshing the Page

Hey everyone! New to clay, it looks absolutely amazing and I'm going through the university lessons right now. Quick dumb question... Once I build a table, it pops up a small tab on the side that lets me to edit table source. However, if I x it out or refresh the page, that tab is gone. And for the love of god I cannot find the button to edit table source after that. How do I edit table source?