Auto Wire Cross Ref.

[STEVENAR]

Hi,

I am setting up a master set of electrical drawings and will take a copy of selected sheets from this drawing set for each new contract depending on the requirements of the contract. I have set-up auto wire cross referencing on the master set of drawings. However I need the auto wire cross referencing to update when sheets are removed from the drawings set.  I am unsure how this can be done. If I take a copy of the master set of drawings with the auto cross ref set-up then remove sheets and run the auto wire cross update then I assume it will simply just put question marks against the wire cross ref where the sheets no longer exist. I obviously need to tell autocad where the wires are going after sheets are removed. Is there a way to do this.  Can you set 'OR' options for wire cross referercing????

Thanks in advance.