How to use git on EX4

I have installed git plug-in, but it not have any Instructions
and I can not find Volumn in ssh to create my own Pro, where is it?
does anyone knows how to set git on EX4?

This type of modifications are not supported and could void the warranty. Maybe some of the other users can help.  

I think the OP is asking how to use the git app that is included with the EX4 - not how to modify anything.