Is it possible to play animator transition in script?

Hello. I want to expand Mecanim functions. because I think Mecanim function is insufficient.

I want to play animator transition in script. but I can't find any related function. Play and Crossfade is only for playing 'State'. but I want to play transition because I need animation interpolation information.

Is it possible?

and I can' find fucntion to get transtion info(for interpolation starttime, time, end time) Is it possible? Thank you~!

I want to expand mecanim function for making more detail combat system.( for exapmle PlayMaker)