I want to prevent the user from "playing" with the numbers until they find a
desired outcome from a model.
To do that, let say I have in cell s:10 a blank cell where the user can
enter the number of goods sold.
Let say the user enters 15 in cell S:10 and press return.
1. Can that number 15 be permanently saved in cell S:10 once the user press
the enter key without pressing the file saved command?
2. Let assume the user saves the model and reopens it. How can I make sure
that 15 will always appear in cell S:10 of that model (even if saved under a
different name) and can't be changed?
3. How do I override the permanently saved 15 in cell S:10 so that I can
enter a different number of goods sold?