Address in decimal form

On the EOS family (Gio in particular, in this instance), is there any way to view the level of an address in decimal form?  I found I could see the percentage if I did an address check, used the intensity wheel to change the value, and went into the park screen,  but I can't find a way to change that to a decimal (0-255).  

I have a fixture that does not have the proper profile for the color wheel, and I want to edit the ranges on the personality and I don't think estimating is going to cut it.

Thanks in advance for your help!

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