You can navigate by using the Top, Previous & Next buttons on the right -> The Select column is for selecting a date you wish to remove if you have inadvertently inserted the wrong date.
Click in the Select Column next to the date you wish to delete, the screen then shows the Delete button.
When you de-select the Selection the Delete button is not accessible



This warning will appear before the record is removed.

Choosing Yes will continue with the Delete, No will return without any action taking place.