The Measure Assitant Reference provides pull-down menus, a tool bar, tabs with dialogs for most of the tasks, and a status bar at the bottom in which messages are displayed. Please note that the status bar does not provide a scrolling mechanism. If the displayed message is to long, move the mouse over it, so that a tool tip displaying the full message pops up. Alternatively, if the message is only slightly larger than the status bar, you can also drag the left or right border of the Measure Assistant window to enlarge it.
Images are displayed in the graphics window of HDevelop.