I agree the new Smart Worksheet doesn't seem to do anything.  On the other hand, I don't understand the purpose of the Smart Worksheet (see next comments about the Copy Feature).

The Copy Feature works great in 2024 and 2025, but it just changed how it works from prior years (it works better now than in older years).  

Enter the amounts for January.  Click the JANUARY box (not February, like in older years).  As a side note, that will do the same thing as the Smart Worksheet, so I'm not sure what the purpose of the Smart Worksheet is.

If the numbers change mid-year, enter the numbers for that changed month.  The click that month's box to carry those numbers down to future months.