Retain Formulas and refernces to other Planning Workbooks

Hi Team,

The users had an interesting question about retaining the cell formulas and references in the IP planning workbook?

I tested this by inputting a simple cell formula in one of the input enabled cell ( like =C8*5) then I was able to save the result of this to cube but when I open the workbook next time then obviously we don't have the above formula instead we will see the value saved to database.

Also can IP workbook reference another workbook and retain that reference formula like excel does?

Any help on this is appreciated.

Thank you.