Hey @Michael Paus 👋
This is expected and not a bug. What you are missing here is a feature that would tell the tooling, that you would like to later add certain targets. There should be a YouTrack ticket floating somewhere, but it is certainly not a priority, right now. We are focusing on making mpp tooling more stable. Maybe, if this is irritating to more people, I could think of potential workarounds for you to configure tooling in a different way!