Hey Carmine,
Thanks for reaching out to us!
Being able to control the events in the dashboard is the core purpose of our Advanced Post Manager plugin and the filters that they allow you to make on the data within your dashboard.
If you would like to modify this without the filters, I can point you in the direction of using a pre_get_posts filter on the events within the dashboard however further customization support for this instance would be beyond what we’re able to provide in support.
I apologize for the inconvenience, if you have any further questions please don’t hesitate to ask.
Thanks!