How To: Sequence Ends ONLY When Player Presses Key

Recently I had set up a sequence that basically substitutes for the player hiding inside of a cabinet. See [link text][1]

However, for this type of sequence, I need the player to REMAIN hidden until they press a key. How do I manage this?
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Use flip flop instead of sequence.

I’m using a flip flop to switch between the play, and play reverse. The flip flop does actually end the sequence. So I guess that appropriate question is how can I make a sequence that pauses at the end until the player presses a key. I guess I’m not too sure how to go abot it