You are free to install this script/stylesheet for yourself, but it is not allowed to be used wiki-wide (e.g., in MediaWiki:ImportJS, MediaWiki:Common.js, MediaWiki:Common.css, MediaWiki:Fandomdesktop.js, MediaWiki:Fandomdesktop.css, or MediaWiki:FandomMobile.css), as it would violate Fandom's Terms of Use. (See the customization policy)
AjaxTemplate adds a button to the header called "Add Template." Clicking the button will trigger a pop-up that will ask you to enter the name of the template.
Installation
Usage
Brackets should not be included (i.e., enter "for", not "{{for}}").
Parameters can be entered, too, like this: "for|example".
On talk pages, the template is automatically substituted, and your signature is automatically included. On pages in other namespaces, it will add a non-substituted and unsigned template at the top of the page.