You can display the name of a toolbar button in the tool tip when you rest the mouse pointer over the button.
This setting applies to all currently opened Radio Explorer windows.
See also
Show the tool tip for an interface element
Turn on or off shortcut key display in tool tips for toolbar buttons
Turn on or off tool tip display on Gantt chart
Turn on or off tool tip display on the map pane
Options dialog box, General tab
Open a new Radio Explorer window