Add to “Submit Event” behavior

Hello,

I was wondering if someone could give me easy directions on adding some custom code to run when a user clicks “Submit Event”. Basically, I am using this plugin as a reservation calendar, and I want to store the event in a MySQL database. It is quite simple to update a MySQL database from WordPress upon form submission, so I was wondering how I could reconfigure the “Submit Event” button to do the same thing (I want to access the start date, end date, event name, event performer fields, so if someone could say where I can find the variable IDs, that would also be great).

I have all my files open in VSCode so I can edit any files as needed. If there is an easier way to do this in WordPress, please let me know.

Thanks!