Final Cut Pro X Guru Wanted

Hi guys,

I'm editing a video in Final Cut Pro X (Mac OS). I must have pressed something, the program is doing some funky stuff now that I can't get figure out how to get rid off.

That border seems to capsulate the items on the time when I add a transition. It does it only to new items I add to the time line. The screenshot bellow shows it.

Many thanks in advance!

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That border indicates that those clips are in a storyline. You can't add transitions between back-to-back connected clips, so they need to be in a separate storyline.