This package provides an environment to switch a section of code on or off. The code may be placed anywhere in the file (it is not limited to the document or the preamble).

The motivation for this package was to have commands which allow preselection based on whether sections of code in a preamble of a template are executed.

See also comment optional version.

The author is Matthis Pospiech. The package is Copyright © 2014 Matthias Pospiech.