You would need cluster: "ivy".
I just did a super simple test and this worked, assuming the cluster owens_login.yml exists and is valid.
---
title: "Super Simple login"
cluster: "owens_login"
The big one is probably making sure ivy.yml is complete (v2.job.adapter at least has to exist).
Also remember to refresh the webpage and you should probably refresh the web server (the restart webserver option near the top right) too if you’re working in ‘production’ mode (putting these files in /etc/ood/config/apps/bc_desktop).