How to Edit or Delete Already Registered Event Properties Not Showing in Lexicon

Hi everyone 🤟 I want to make two adjustments to two properties of events that have already been registered: 1. I want to change the word because it's misspelled. 2. I want to delete the event because it was registered with an incorrect name, which we later changed to the one right above it. Do you know how I can do this? They don't appear in Lexicon because they aren't events per se.