Wiki, creating page templates

How do I create page templates for the Illinois Wiki? What plugins are available to create templates?

Technology Services offers two options for building page templates.

Confluence Templates

Create a Template:
https://confluence.atlassian.com/conf66/create-a-template-943961824.html

Creating a Page using a Template:
https://confluence.atlassian.com/conf66/create-a-page-from-a-template-943961842.html