First time poster. I tried searching for this, but couldnt find anything similar.

I want a particular column that has a drop down menu to show the date/time stamp in the comment of that cell of when its been modified.
In this instance i have a column thats named ' Status' and the options in the drop-down menu are 'Paid', 'Unpaid' or '-'. By default its on - and i want the cell to have the date and time of when its been modified, and if its been modified more than once then , all dates if possible. Else one modified date alone would do.

Been searching for this for quite a while.

Thank You in advance.