I bought the Weebill S as a single package after returning the DJi Osmo Pocket, which I didn't like. (It was 100% functional - I just didn't like it). Unfortunately, I now find that there is no object tracking with the Weebill S - which for me makes a stabiliser - to be honest - seem near useless. Numerous searches have now revealed that with the Transmission Pro Kit this is possible after all (This is why the statement "object tracking no" in this article here is also wrong. Anyhow - I would like to "upgrade" - is it possible to upgrade to the bundle and pay the corresponding extra price minus the basic unit? That would be very helpful. Many thanks and best regards Markus Ammann