I follow the document （https://aximmetry.com/learn/tutorials/for-aximmetry-de-users/experimenting-with-htc-vive-camera-tracking-using-unreal-scene/）
You can find a compound supporting camera tracking with Unreal at [Common_Studio]:Compounds\TrackedCam_Unreal\TrackedCam_Unreal_Prev_3-Cam.xcomp
But I can‘t find that file in my computer
Hi Beitown,
It has been renamed to TrackedCam_Unreal_Prev_3-Cam_3-Billboard since then. You can find every tracked Unreal camera in the folder of [Common_Studio]:\Compounds\TrackedCam_Unreal.
Also, make sure you have Common Library installed. You can download and install the library from https://my.aximmetry.com/User/MyPackages if you deselected it in the Aximmetry installation process.
Warmest regards,