Can we measure a Guide Goal in a different Application from Guide in Multi-App Subscription?

We have a multi-app subscription where the public, unauthenticated marketing site is in a different Pendo Application from our authenticated SaaS product platform. We want to display a guide in the product that directs users back to the website to fill out a form. When I try to set the Guide Goal, I notice that only Features in the current Application are listed.

I'd love to be able to select Features from different Apps as a Goal. In the meantime, is there any workaround for this? I assume that we can't move the Guide into the other application because then it won't launch, and we can't define the Feature in another application because the API key in the code snippet won't match so it won't capture any data.