Question Scaling ARSessionOrigin and working with large objects in ARFoundaiton

Hello, I am new to ARFoundation, and I'm struggling to get the scaling for larger scenes to work. I know that in order to work with larger objects you should scale ARSessionOrigin, but when you do it? If I set the scale in the editor plane detection ceases to work, and if I try to do it after plane detection the placement doesn't seem to work.

So as an example I have a cube with a scale transform (100,100,100) and I want it to be roughly 1 metre cubed on the plane. In my script to place the object:

Code (CSharp):

1. // If there's a touch
2.         if (m_RaycastManager.Raycast(Input.GetTouch(0).position, m_Hits, TrackableType.PlaneWithinPolygon))
3.         {
4.             // Begin or move
5.             if (Input.GetTouch(0).phase == TouchPhase.Began || Input.GetTouch(0).phase == TouchPhase.Moved)
6.             {
7.                 // Find the position
8.                 // Move AR session to get content at ray position  
9.                
10.                 m_session.MakeContentAppearAt(placeableObject.transform, m_Hits[0].pose.position, m_Hits[0].pose.rotation);
11.                 if (placeableObject.activeSelf == false)
12.                 {
13.                     m_session.transform.localScale = fixedScale;
14.                 }
15.                 // Set content to active
16.                 placeableObject.SetActive(true);
17.                 disablePlaneTracking();
18.                 disableExistingPanes();
19.             }
20.  
21.         }

with a fixed scale being: fixedScale = Vector3.one * scaleFactor; (in this case 100?)

So my question is when placing an object, do I do:

1. m_session.transform.localScale = fixedScale; (Change ARSession scale)
2. m_session.MakeContentAppearAt(placeableObject.transform, m_Hits[0].pose.position, m_Hits[0].pose.rotation);

Or do I add the content, then apply the scale? Neither seems to work.

Thanks.