Option to "forget" user environment

[mottosso]

Sometimes, the user may launch an application and spot a really old environment having been set. Where did this come from? He looks at his local system environment and finds nothing. Later, he discovers that a few months ago, the value is coming from his now outdated Allzpark user environment.

Implementation

Add an option to forget it in the Preferences tab.

[davidlatwe]

Add an option to forget it in the Preferences tab.

Or adding an indicator like what #125 did, to indicate user environment has input ?

[mottosso]

Sure, that might work. Let's reopen this if the problem resurfaces.