[libreoffice-users] Generic formulas or inverse scenarii

Hi,

I wonder if Calc can help in my case:

I'm writing a financial forecast for my company. We sell 3 kinds of products. 
But they all use the same scheme when it comes to computing fees and incomes. 
So i made one (big) table with all the computation process and the comments 
(it has to be shown to financers). The product variables are isolated at the 
top of the sheet.

Then i used scenarii on my variables (there are only 4 variables to define a 
product). It's fine: i can switch scenario and i see all the matching 
forecasted results on the computation table.

But now, i want a new spreadsheet summarizing our activity: we sell the 3 kind 
of products, so i make a table with three lines, one by product. Rows are for 
years (5 in my forecast). And of course, i would like this table to be 
dynamic, and change with whatever variable i change in scenarii or formula in 
the forecast table. The problem is scenarii are not the answer, because they 
are by definition volatile: when you switch scenarii, all the data, 
everywhere, gets adapted. Even naming a scenario and using its name when 
refering to a cell doesn't work, because cells out of the scenario's frame are 
considered empty.

So, is there a way to mix the scenario behaviour with dynamic tables mixing 
data from all scenarii?

I thought of generic formulas: i could make only one sheet with all 
computation, then 3 other sheets with only the variable data of each of the 3 
products, and use the first same sheet formula in the 3 next ones to get my 
results (in place). Then a 5th sheet could easily summarize all that. The 
first sheet would not have any result, since without the data of the 3 other 
sheets, it's only formulas.

I hope i was clear. Not easy to explain that, but i'm sure you see my problem, 
and maybe someone has another, magical, solution.

Of course i could copy 3 times the whole sheet (data + computation), but that 
means much more maintenance, since i'm changing often details in the formulas 
(i should do changes three times always). And what about same case but with 
10+ products?

Thank you for reaching this line of text :)

Best regards,

Ninj

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