I had a think about this and actually I don't think worksheet.change is the best way for this, I think a simple button is a better option.
Place the code below in a regular module.
Then insert a button on the sheet (a Forms control button not an ActiveX button), when you create the button the assign a macro dialogue should automatically open (if it doesn't right the button and click assign macro).
Select the "xvxi" macro and ok.
To use, click any cell in the row currently holding the formula and click the button.
Things to do/note
Make sure you "fix" the start row number in the original formula i.e. not
Change the letters in red to the Column letter of the cells you want filled automatically.
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