Yes, in enforePOS, it is possible to define different VAT rates for inhouse dining and out-of-home sales.
To do this, you need to set Reduced Tax (Take Away) in the price in the sales item properties and activate the Take Away order type in the cash register settings and select the Default order type. The cash register will show when you activate Take Away sales.
Find out more in the How-To Reduced Tax (Take Away).