If you do not want sales for services (rather than goods) to a EC customer to appear in box 8 on your VAT return, you can go to Sales ->Sales Type, select the sales type you want, and disable the box labelled "Include in Box 8".  If disabled, the sales of this type to the customer in other EC Member State will not be included on Box 8 of your VAT return.  To include the sales type on EC Sales List, tick the next box to include on EC Sales List and click update.