Several menu commands of LiveCoverage use the current executable file. This is an executable file in the project that you have selected, explicitly or implicitly.
If there is only one executable file in the project, that is the
current executable file.
If the active window is a Source Window,
then the executable file containing that source file is selected.
If the active window is a Summary Window
and there is more than one executable in the project, then you must
select and highlight the current executable file. Do this with the
mouse by clicking on the file name in the Executable column of the
window, and dragging the mouse over it (holding the left button down)
until the line is highlighted.
Otherwise, there is no current executable file.
The menu commands which use the current executable file will generally include the file name in the menu command so you can be sure you are operating on the correct executable file. These commands are not available when there is no current executable file.