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Spectral analysis of a peak FFT waveform graph

Question 1:
 
I have a VI that displays the output of a tri-axial vibration transducer that I'd like to convert to 3 separate numbers, 1 for each axis, that represent the energy imparted to the transducer.  This is to simplify the data so that a user can decide whether or not the UUT is good based on a number rather than interpretting a graph.  What function would I use to accomplish this?
 
Question 2:
 
How are description text boxes with yellow backrounds and black lettering put on the front panel?  The closest I could find in the decorations pallette was labels but it didn't look like the typical yellow backround that was in most of the example VIs.
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Question 1:

What hardware are you using to take your measurement?  If the VI you are using returns an array of numbers, you can use an 'Index Array' function to separate the values into individual wires.  These wires can then be displayed on numeric indicators on your front panel. 

Question 2:

Go to View>>Tools Palette to make your palette visible.  Double-click the background of the front-panel to create a textbox and add your label.  Then use the 'Set Color' cursor from the Tools Palette to change the background color of this text label to yellow.  The default font color is black.

-Bob
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