how to make objects stay on screen when target lost and set a specific position and scale Unity

Question

Hi,

I'm using EasyAR Sense 4.5.0 with Unity 2020.3.6f1 to privide AR content. We have multiple 3D models in various shapes and sizes.
We move the 3D models from the ImageTarget to another GameObject when the target is lost to keep it on the screen, but we are struggling with calculating the Position and Scale of each object when the tracker is lost.
We have to manually place each model in Play Mode with EasyAR Camera enabled and check the Transform for them, is it possible to place them automatically at the origin in correct scale automatically?