When you copy/move/delete files/drawers, Ambient's window status bar does not get an update.
Example: Open RAM:, watch the status bar. Zero Bytes in 3 drawers and 0 files. Copy a file here, and the status bar doesn't get updated. Change view or click refresh it by clicking the butoon "Ram disk:" in the navigation bar it gets it's update. Same goes for moving and deleting files.