Rated 5 out of 5 stars
>>F6 alt+Enter does the same thing
>>Built in, yes. But you need three key strokes and two hands for it instead of you one click...
You can dot this even easier - holding CTRL key down and moving tab with mouse where ever you want it. Anyway, I agree that this is very useful since I need this functionality all the time.
P.S. "Merge windows" option is awesome, but I find it almost unusable since most of the time I do not need tabs from all windows merged.