Scrolling in Fusion is really easy. Adding virtual scrolling on the frame and layer to create the appearance of infinite scrolling is easy too. However, the layers wrap horizontal and vertical properties only affect background objects on the layer. Active objects stay in their original position and can be left behind as you scroll away from them.
This example offers a solution to keeping everything in view and bringing the active objects in their virtual positions. The player object has a behaviour with all of the events, there's not many need to get this working...
The Frame is set to twice the height and width of the window, but it could be any size. The layer has a virtual height and width that is three times the size of the frame and has wrapping switched on. The player is kept in the middle area of the virtual frame.
The active objects, in this case the treasure, are kept within half the frame height and width distance from the player and this keeps them in their correct location as you scroll around the infinite world. To make it easier (and thanks to the DLC+) a group qualifier is used for the treasure and this qualifier can be added to other objects to keep the same behaviour.