Create A Button

I have a userform, with a save button.

The Save button transfers data from my userform to a worksheet via variables.

It then proceeds to use the variables to generate further data, dependant on a combination of the variables, as this process creates a row of data on the first available empty row, as this script is being used in a loop, ie add another record yes or no.

I need to incorporate a method whereby the user at any point can click on cell S(x) where (x) corresponds to the row clicked, which will then run a macro which will allow me to change a value from OPEN to CLOSED and also add a userentered date into a field called DATECLOSED, it is imperative that this process only work on the row in question.