Working with Devexpress gridview

Hi All,

I am working with a windows application where a third party Gridview component is used.

https://docs.devexpress.com/WindowsForms/3464/controls-and-libraries/data-grid/views/grid-view

I am not able to select a checkbox in the header row of the Gridview - actually it is in between header and data row - no selector available. Anybody done any automation with this devexpress gridview. Kindly help me with that.