Clicking on one item in a group changes other items to "visited" state

Hello all,

I am attempting to create a scrolling menu (still a work in progress) but there is one issue I am having: 

I have all menu buttons grouped together so that clicking on the arrows moves all of the buttons left or right. 

This seems to cause an issue with the visited states. The desire is for each button to turn to visited when clicked independently. However, because they are grouped together, it seems that when one button is clicked, all buttons turn to the visited state.

I could probably remove the grouping and create motion paths for each button, but that seems tedious. I was hoping someone has discovered another way?

(pls note: still a work in progress. I am adding triggers to prevent over-scrolling eventually. Wanting to solve this issue first)

See attached SL file 

Thanks in advance!