Poser still has the tube. It's called open cylinder but there are easier ways to make the pony tail. Just use a ball and make a few polys your hair group. Grow them out as long as you need and place the ball just inside the head of your figure. The tail can be simmed separately from all the other hair groups and saved to the library for use in future projects with a simple mat change to match the hair you are adding the tail to.