Adding Further days to an existing date

Adding Further days to an existing date

Hi, Im looking at a function that when a blueprint is pressed I want to add a further 30 days to an existing date field, now I know how to add currentdate+30days but that isnt what Im intending to do e.g Date field is 01/05/2022 but once this blueprint is actions, it will add 30 days to this date that is already populated?