Add a comment signature to a script with a shortcut.

So, this might be an odd question, but I'd like to know if there's a way to add a comment line to an open script in matlab via keyboard shortcut or quick access toolbar button. There are a few people that work on one script and it's hard to tell who changed what. So to make it easier, it would be nice to have a way to quickly do this...

Original code:

function MarkerLabels(app)
            if isempty(app.EventMarkers) % This will only apply if you browse for the same file.
                cla(app.UIAxes2)
                % If there are no markers, then clear the marker axes and
                % reset the interface if there's no events stored in
                % app.EventMarkers
                app.PreviousMarkerButton.Enable = 'off';
                app.NextMarkerButton.Enable = 'off';
                ...

Then press a key combo or toolbar button and apply a "signature" to the comment or line of code. Like this...

function MarkerLabels(app)
            if isempty(app.EventMarkers) % This will only apply if you browse for the same file.
                cla(app.UIAxes2)
                % If there are no markers, then clear the marker axes and
                % reset the interface if there's no events stored in
                % app.EventMarkers % Added by KH June-05-2020 15:45CST (Friday)
                app.PreviousMarkerButton.Enable = 'off'; 
                app.NextMarkerButton.Enable = 'off';
                ...

I know how to make a quick access button to run code on the command line, but I want to place a signature in an open script file using something like

datetime

with some additional formatting.

Thanks