Add 4 new editable regions to the bottom of an existing Mailchimp Template

This is for changes to a Mailchimp email template used by a "daily deal" style website. Our current template is used to promote one mail deal in each email and we would like to add additional cells to the template, so we can provide a shorter promotion of deals from the other 4 categories. Current categories are: Dine, Shop, Body, Casual Eats, Kids. These will need to change position on the template depending on the Category of the main deal. Details: Need to add 4 new cells as editable Mailchimp regions to an existing Mailchimp template. The current template has a header, two cells (split horizontally) and a footer. We want to add 4 more cells (two rows of two cells each) below the current two table cells (above the current footer), but they need to have the Mailchimp coding added to be compatible with the Mailchimp campaign editor. ***The existing Mailchimp template (with HTML changes to add additional cells) and a rough mockup are attached.