Calendar with no task option

[Mojave]

Hello,

I just purchased the Galaxy S5 and love it! I also have the Galaxy Tab 3 10.1 tablet. On my tablet the calendar has these options: Year....Month...Week...Day...List...Task. Now when I open my calendar on my S5 all I show is: Year...Month...Month and Agenda...Week...Day...Agenda. So where the heck is the "task"??? In my tablet calendar I have all my bills listed as tasks so I can pay them (they all are recurring for every month) and then mark them completed. I would like to able to do this on my S5 now. Any help would be appreciated. Thanks!