how to Pause one animator state? or access animation within animator?

Hi to All,

I am new and struggling in a Animator problem. I have a simple "Animator" like this

And when mouse click, i would like to pause the "TouchingArea", which is a "Animation". I know if I use Animation, i can easily do this but my project is using Animator. Furthermore, is it possible to access one animation within animator ??? ( if yes, that can really save a lot of trouble )

Thanks in advance.