How to highlight an element of an array

[PULSE.Wannabe]

I'm making a project where I control direction with camera , then I have a 2D array, for example the current direction is left, then the indicator shows the array element one by one to the left, the point is I want to highlight (maybe a red border around an element moving to the left or something) 

is it possible? 

thanks , attached file below 

[altenbach]

Use a table indicator and change the cell background color.

[altenbach · Accepted solution]

Quick example:

[PULSE.Wannabe]

thanks so much