animation time line

kindly for those who use windows version of unity 2.5
how could I open the animation timeline layout?

There is no animation feature in Unity 2.5, it’s improved and re-added with 2.6.1

Why would you use 2.5 anyway?

in my latest company we purchase 2.5 pro
on mac OSX
and I use to do animation on some objects by the animation time line
but the demo version(2.5)on window I still cant view
the animation time line.

well in order to define the walk cycle for example I need to see animation see the time line to modify my character animation