Auto accept shared calendar invitations

My family of 4 shares our calendars and I also have a client calendar I subscribe to as well as another private calendar I have for my business.

Every time anyone adds a calendar event on their own calendar, it shows up under invitations on mine and I have to click 'ok' to make it go away. What I'd like to know is how to get those 'new' invitations out of the 'queue' so I don't have to click 'ok' on each and every single invitation to get it out of my 'to do box'?

Pic of the 'to do box' area on my calendar for reference. (this is after I clicked ok on all of the items already)