Calendar modal footer custom content?

Does anyone know if it’s possible to add custom content to the calendar modal footer? I’d like to add a delete button on the left, in addition to the default “Done” button that’s on the right.

Thanks,
N.

Something like this is doable:

app.calendar.create({
  // ...
  on: {
    open(calendar) {
      calendar.$el.find('.calendar-footer').prepend(`
        <a class="link my-delete-button" style="margin-right: auto">Link</a>
      `)
      calendar.$el.find('.my-delete-button').on('click', function () {
        // do something
      })
    }
  }
})

Legend! That’s perfect, thanks!