I have all the columns I want to be shown defined in the get_columns() method. Because i have a date when the data is added and an ID which I don’t show in the table. I have the exit at the end of wp_redirect. This is the github gist https://gist.github.com/anonymous/2fbf94727533c768109f with the code for wp_list_table. I have created a custom post and custom taxonomies and submenus to add to the table and to show the data from the table. So if you also need that, I can add that too. Thanks for helping me!