Open the 
Budget
window.
Click Functions, Copy Budget.
Fill in the fields. For Help about a specific field, click the field and press F1.
After filling in the fields, click OK to make the copy.
You can copy budget figures to other budgets. If you want to change the figures, simply go into the budget window and type the new figures over the old ones.
Before you start copying budget entries, you must decide:
whether to filter the entries to be copied: that is, whether all or only selected budget entries are copied.
which information the new budget entries will contain compared with the old entries: that is, whether there are changes in the dates, dimension codes or budget names.
Open the Budget
window.
Click Functions, Copy Budget.
Fill in the fields. For Help about a specific field, click the field and press F1.
After filling in the fields, click OK to make the copy.