Replace index values of an array with strings

I have a 2D array control (or indicator) CH x T : each cell of the array contains the voltage recording for the channel and at the time represented by the respective row and column.

I would like to be able to scroll the data by showing the channel names and the time values in the Index display instead of the numeric values.

For example, instead of seeing 0,1,2,3 etc as row index values I would like to see Channel1, Channel2, Channel3 etc.

Is this somehow possible?  

Any idea is very welcome!

Thank you in advance!

Cheers.

MG