Dashboard grid

Hi,

I want to color cells in column 1 green bases upon another value in the record.
I can add this value as a column to the grid and base the rule in column 1 on the value of column 2.
But I don't want to show column 2, only use the value.

I can change the width of column2 to 0,01 but I would rather hide it.
Is this possible?

Regards,
John