Cloud, are you a UK Licence holder having a multi engine IR endorsed on your existing EASA CPL issued by UK or are you the holder of a JAR CPL and wishing to convert this to EASA CPL and add the multi IR at the same time? The IR course in Spain is being done by a JAR training company and the check ride will need to be approved by the UK CAA according to CAP 804 with the examiner filling in the "self brief" at least 3 days before the actual test. If you already have the EASA Part FCL licence the addition of the IR should be completed in the same day, if not they post it back to your UK address. ( As UK Part FCL licence holders must have an address in UK)