Data Validation Query-formula building and making drop down button visible

[Excel Dumbo]

Hello,

I am posting this again, as I had posted this request earlier and didnt get any help. Would greatly appreciate if you could help me

If you please have some time, could you please look in to the attached spreadsheet . In the attached spreadsheet i need to build a formula to give me the YTD figures which is linked to the monthly calculated figures and I need to make the drop down buttons visible .

Regards,
Excel Dumbo