Hi All,
Hope you can help me:

I use a "heavy" excel workbook with lots of data & calculations.
Calculations went so slow, so I used the Manual Calcualtions option which means that only when I choose to calculate sheet or workbook I press the button.
so far all is good.

but-
How can I define that specific fields with "simple" calculations in this workbook will be calculated automatically and the heavy data tables I define will be calculated by pressing "Calculate Now" button?

thanks in advance,
Shay