Hello friends. I took off two keys to clean, A and D key in my 2012 MB Pro 15" pre retina. I fixed the keys; in that they are working now when I press them. However, the two plastic pieces that comprise that key mechanism (not the cap, the translucent plastic pieces that hook in underneath), are apart in each key. I think I understand which way each of them goes, which way is down, etc... but what I need to know is: how do you click them / get them back together into one piece that scissors properly? Thanks so much for any reply! --- Post Merged, Oct 19, 2016 --- Okay. Now I see that there are two tiny holes in the larger piece, that correspond to tiny tabs in the smaller one. Is there a trick to getting them both in? I assume do one, then the other? Any experienced advice appreciated. Thank you.