Event for Array : Index Values change

[SteveP]

How about an event that fires when an Array's Index Values (shown at the top left of the array) changes ?  I use a arrays of clusters of controls to present configuration options to users and would like to know when they have selected a different index.

[Dave_Thomson]

I would find this feature useful as well.  There is also a thread in the forums suggesting this from back in 2007.

[X.]

It is possible to figure out whether a user changed the index of an array with a combination of Mouse Down, Mouse Move and Mouse Up events

(which have do be dynamically registered). However this would be much easier to have this as built-in events.