Delete the uploaded file

Hello All,

I am new to he Outsystem platform. I am little confused how to do the following
I have a form with the upload picture option.


Now I am not sure how to delete the upkoaded file from the form. I cannot use delete action. The file name is coming from the expression which is like below

So not sure how do I include an delete option to remove the file uploaded  from the form. Any help is greatly appreciated. Thanks

I'd think refreshing the widget is enough to clear it?