Hi, Zbrushers!

So what I want to know if is there any way to brush up Maya Blend Shapes in Zbrush.
I know that we can create Blend Shapes in Zbrush and then export them to Maya, but if I already have my Blend Shapes done in Maya can I change them in Zbrush and then use the new ones in Maya?

Thank you for helping me and sorry if this is a "noob" question.