Hide/show which holidays are shown on the calendar

It would be nice to be able to remove or hide individual holidays that appear one your calendar when show US holidays is selected. I want holidays to show, just not all of them,  but the way the app is set up now either all of the holidays show or none at all. Also, there is a difference between holidays and days of recognition... if being able to hide or even delete is too big of a request,  an option to show only federal holiday would be nice. I hate how busy/ congested my calendar looks with all the extra 'holidays' added on, it makes it harder to see everything at a glance.