A Better Way

So I am very new to construct 2. I am currently trying to make a basic physics puzzle game, and so far i'm proud of what ive made. However, im just wondering if there is a more elegant way to accomplish what im trying. Curently, a player selects a platform, and once selected can press one of two buttons to rotate it clockwise or counterclockwise. Just seeing if theres a better way than my current "Selection" method of activating and deactivating groups. Here are some pictures of what ive done so far.

i321.photobucket.com/albums/nn399/moonxcowz/Myevents.png

Thanks :)

s000.tinyupload.com/index.php

Hope it helps (added a deselection at the end as well). Works with as many bars as you want to have.

<img src="http://666kb.com/i/cjoeny8z15z474nlb.png" border="0" />

Thanks so much for the reply :) I'm not entirely sure what any of that does but ill start disecting it. Thanks alot XD