hi Nick https://experience.workfront.com/s/article/Filter-and-Condition-Modifiers-2103727147 here's a link to different modifiers in WF. If I understand correctly, the contains/cicontains filters are supposed to be used in text string searches (?). I don't have time to look further into this right now, but seems like we've had a spate of recent discussion on how to tell when a custom form is attached to something so someone might come up with a link to a community post for you. -skye