Unfortunately, at this time we do not support structured A/B testing in the platform. This functionality is something that a few of our customers have asked about in the past, but isn't something that we plan on supporting in the 2019/2020 calendar year. In order to run structured A/B testing, you will need to figure out a cohesive workaround through Core iQ, but we are not able to offer support for this at the current time.