Hi,
Unfortunately this is missing in Fusion and frustrates my very often. Months ago the support also confirmed, that they did not implement it yet.
Before Fusion I created webhooks using the Event Subscription API, and there the OR operator as well es the IN condition are perfectly working. Unfortunately I did not yet figured out a way to replace the Webhook referenced by the Watch Event module with the manually created webhook.
Although I do not really like this workaround I use a corresponding OR-filter right after the Watch Event module to cancel the scenario if not valid. But as the Watch event module mostly does not provide all necessary fields, another search module is needed in between.
I would really prefer to save some workload and especially operations in Fusion...
Regards
Lars