Auto populate the multiple rows if the condition is met

Hi Egemen 

Dates (and not Text values like Dec, Jan...) must be enterred in row 10. You can Custom format them to only display short month names if you want

All Cond. Format. rules, but for Commencement, done with https://support.microsoft.com/en-us/office/edate-function-3c920eb2-6e66-44e7-a1f5-753ae47ee4f5 & https://support.microsoft.com/en-us/office/xlookup-function-b7fd680e-6d10-43e6-84f9-88eae8bf5929 functions - see attached file