I have a list of four options in a cell. I want to control a set of
destination cell values based on the user selection of the options from
the list. As an example: option 1 sets the destination cell values to
some numbers, where as option 2 may set the values of very same
destination cells to some other numbers.
When user selects an option from this list I want to do the following:
1) Initially reset the destination cells to zeroes
2) If user sets some values in those destination cells, I want to
remember the user set destination cell values, as applicable to
selected option and display it next time.
I am sure this has been discussed and solved problem. I am new to this.
Can someone give the right examples?

Thanks
Rao