[Help Wanted] The Scope of Variable

navi is awesome! But I'm having a problem with how variable scope is defined.

It seems that the variables are completely global, even though I've scattered them across different files. This sometimes causes variable name conflicts. Also, I don't want to display very long variable names in the command.

Is it possible to define the scope of variables? Or, is it possible to define a variable that is only used for the previous command?

Thanks in advance.