Is it possible to move through itween path manually with a parameter except of time?

Hi,

Is it possible to move through Itween path manually with a parameter except of time? for example I have a float between 0 to 1 that 0 is first point on path and 1 is last point on path.

Have you checked out PutOnPath() and PointOnPath()? I think those will do what you need. There's also an example on the examples page.