STEPS TO REPRODUCE
1. Launch iClone 6
2. Load a project with several props (over 3 props)
3. Go to Render panel, select “Image”,then move to Panorama section, check the box for “Enable 360-degree Panorama”
4. Select all the props in the project

ACTUAL RESULT
Fail to select all the props in the project, only two or three props can be selected

EXPECTED RESULT
All of these porps can be selected

NOTE
It's so hard to pick props in 3D View