This will be implemented in the next release. It is not a proper search function. Just typing the name of the sequence brings you to that sequence, but you have to type it exactly right.
Yes jerm, it would be very usefull for a rapid search.... ex : someone is ask me to sing " beat it ).... and easily I set the song to sing.... by typing " beat " except if I wrote " beatles " in that case there would be 2 choises...