STEPS TO REPRODUCE
1. Launch iClone 6
2. Navigate to Menu > Create > Primitive Shape, click "Sphere"
3. Go to Modify > Material > Texture Settings > UV Settings > Offset, input "-0.12" to U/V manually

ACTUAL RESULT
Fail to input negative value to Texture UV Offset

EXPECTED RESULT
Negative value can be inputted to Texture UV Offset