Create a copy of a variable
Use the Copy Variable dialog to create a copy of a variable. The variable copy will be an exact copy of the original variable except that it will initially not be used anywhere in the model.
Enter a name for the new variable by modifying the original variable name. If you leave the original name unchanged, it will be appended with a number in parentheses, much like a duplicate of a document on your desktop.
Tags will copy from the original variable. Tags of the copied variable can be edited from this dialog.
Numeric value of copied variable. The value is the same as the original variable.
If the original variable is not a subformula, this area will be blank
If the original variable is a subformula, the formula will be copied over to the new variable and will appear here. The formula is displayed here for reference, and cannot be modified until the copy action is complete. Click OK. Then open the new variable to make any modifications. Note: remember to Make Unique any variables in the new variable subformula before making changes which should only affect the variable in the new variable subformula, not the original.