The Luxuos theme framework allows a very easy method to create new template files, partly because it doesn’t split up the templates into separate files – each template is a self contained entity with a few php tags thrown in, so if you are comfortable in html you should have no problems 
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The Procedure
1) Identify the template files, these are in the theme root directory and have descriptive names such as ‘Single-Column.php’, Single-Column-No-Footer.php’ etc
2) Duplicate the templates you wish to create modified versions of, and give them a suitable name
Open the new file(s), and modify the code at the top.. For example the ‘Single-Column.php’ contains:
(medium for 2 column pages, large for full width).
/* Template Name:Single-Column */ $GLOBALS['content_width']="large"; //for portfolio use $GLOBALS['template']="Single-Column"; get_header();Here you replace ‘Single-Column’ with the new name of the file (minus the .php extension) for example, if you named the new template ‘Single-Column-Modified.php’ you would change the code to:
/* Template Name:Single-Column-Modified */ $GLOBALS['content_width']="large"; //for portfolio use $GLOBALS['template']="Single-Column-Modified"; get_header();The content_width global variable is just for portfolio use, it is either medium or large
(medium for 2 column pages, large for full width).
This template will now be automatically included by the theme and available either via the theme settings panel (such as assign a template to all posts, all pages etc) or override a specific page from that page’s edit page dropdown.