Why not use a progress bar.
From your front panel, go into the Controls Palette, select "Numeric" and pick one of the 4 available progress bar. Pick something that you can measure progress with and wire it to the bar.
If you wish to have a flash-light that moves sideways (like Windows), then try to find the icon and place it within an active loop (s).
I prefere the progress bar. That way, you can have an idea of when it is going to complete. You can even have granular steps that show part of the code is done..
Experiment... and have fun..
JLV