VAT Treatment

We operate two companies from our clear books package, both of which has overseas clients. One company I am able to select a VAT treatment e.g goods from EU country, services from UK supplier etc. On the other company this is not shown as a option. However it is a really useful tool when doing our VAT return. Does any one know how I "switch on " this facility please? In company 1 I find it under customer defaults but there's no drop down for it in company two! Any advice would be very much appreciated please!