The status bar is placed under the designer window. The picture below shows a status bar of the Standard UI.
The bar contains 4 sections:
Units. This field shows current units in a report. It is possible to change them
Report Checker checks the report on issues
The field shows a name of the currently selected component
Shows cursor coordinates on a page of a report template. (Х:0,0 ; Y:0,0) coordinates corresponds to the top left corner of a page of a report template
Page Zooming control.