User:JackSchmidt/TL AddCats/doc

This template is intended to allow novice template writers an easy way to write a template which can be transcluded for demonstration purposes, but in a way that avoids adding the categories to the demonstration page.

For instance: Indicates the desire to add three categories to a page, but this desire is suppressed since the template is being transcluded for display purposes only:

To use this template in another template, use the syntax and then your template will behave normally (adding categories to the transcluding page) if your template is not called with the display=on parameter, but will go into "display only" mode if called with a display parameter set to on (or yes or true).