programmatically change column index in 2d array

[JHaas]

Hi,

I have a 2d array on my front panel. I'd like to be able to programmatically move the columns to the left or right (see picture). I cannot figure out how to do that using the IndexVal property of the 2d array. Sorry, it must be simple, but could someone point me in the right direction?

Thanks

[bsvare]

Look into "Index Values" on the array's property node. Read out current value, increment the right array index (2nd location because based on column), and write it back.