That's a tough one! I found this: https://gist.github.com/leekelleher/ce6c7d6bc7e783bfe58d271392d9a82b Maybe you can adapt it to not list trees but members. To make it work fast I would also use the Examine MemberIndex for querying. Ps. There's a handy #882968040709427220 channel for questions like this! 💡