Unused Variables Stripping

[Arthur]

I would like to have HE removing unused variables for me.
Is that acceptable?

[alex]

This is can be done only by tool that know the language you are editing, and could not be done in general case.
So only as a plugin or tool for some specific syntax. Not by HE itself.
Also think about global varibales, which can be defined in one file and used in others. Generally only complete IDE can do such function...

[Arthur]

Perhaps this can be done in form of a macro and the macro feature is missing .