In structuring your site the Kallzu way, you need to have a separate page for each of your main keywords. For niche related keywords or services related to your niche but do not have enough searches to rank, create them as service posts.
Note that in Kallzu, we teach our students to create city pages and service posts.
City pages are for the services you offer and should contain your main keywords.
Service posts, which can either be a page or a post, will contain niche related services or topics related to your niche. If you have a pest control niche, your service posts would be links to a rat page, a spider page, etc. The videos in the members' area explain this in details so be sure to watch them.
Also, keep in mind that Kallzu SEO is designed for LOCAL niche sites.