Pin button to always be on top

Hi All,

I'm using the Calendar Visual by MAQ software and I've added a 'See Details' button so the users can select an event and be taken to another details page.

For some reason though, the button has a tendency to hide behind the calendar if the user has clicked on the calendar. If they have the button selected, they can click on the calendar event and the button will remain on top. This issue happens in both PBi desktop and the published report.

Is there a way to make a button always be displayed on top?

Thanks