Why is it when I multi-select some objects and characters and input values into Modify > Local Transform there is no effect on the character?

Currently, iClone characters do not support features of Transform > Scale (we will continue to enhance the usability of this feature for the future).

Furthermore, the RTS gizmo for multi-selected items can only be used in world space with the rotation pivot set to the parent. We will work to provide better RTS integration in future version updates.