In the Navigator, click Properties next to the page to which you want to assign a new template.
Click the Template tab.
From the Page Template list, select the template you want to apply.
The Region Mapping section may appear on the Template tab. If it does, that means that one or more regions on the page contain content that must be accommodated somewhere within the template you selected. Region Mapping is displayed only when:
You are choosing a template for a page that 1) has never had a template applied, and 2) contains content.
You are choosing a new template for a page that 1) already has a template applied, and 2) contains portlets or items were added to the base page after the original template was applied.
Someone--one, or possibly many--users customized the page for their own use by adding content. As the page designer, you have to decide where the content should be located not only for the base page, but for every single customization of the page.
For each region listed in the Move content from ... column, select a new home for the content using the drop-down list in the Move content to ... column. The drop-down list displays only those regions that:
Allow content to be added. If the Enable Pages To Include Content In This Region checkbox was de-selected, the region is not eligible to have content moved into it and thus is not displayed.
Match the type (portlet or item) of the region named to the left. If no region of the appropriate type exists in the selected template, you may want to select <Discard Content>.
The <Discard Content> option is useful when assigning a template to a page that already has some template-like elements on it, such as a banner. For example, if the page has content in the banner region, you may not want to move the old banner content over to the new template's banner region. Instead, you may opt to simply discard that content.
All items and portlets on the page must have a home in the new template. So, if your page contains an item but you chose a new template that does not have a region allocated to items, you must either discard that item or choose a different template.
Use the Preview section to help you determine which region corresponds to a given region number. If the region has a name, the name is used instead of numbers.
Click OK.
Content belonging to the original template is not eligible for mapping to the new template. For example, consider the following:
This page was initially based on Template A, which contains a navigation bar and four portlets. When Template B is applied, the page inherits the content dictated by that template: two portlets and a different navigation bar. You will not have an opportunity to map the four portlets and navigation bar that used to appear on the page, because those belonged to Template A, not to the page.
Content that belongs to the template itself is flagged by this icon: