Grid viewer flexibility ?!

Hallo everyone,

I am trying to modify grid viewer on Diva, but i didn't manage what i want, my questions:

- Is there a way to show only the results, which is for instance greater than 250 lux, and not showing the mesh results less then 250 lux? (i.e: only part of the whole mesh)

- Is there a way to get the area of the mesh greater then 250 Lux? (i need to get the percentage of the area greater than 250 lux over the whole area)

- Is there a way to play with falsecolor? I need the results greater then 250 lux to be in oné color (and not gradient) 

any help? :)

merci!

j.