You can change or customize the left side navigation very easily.

How to add new/change menu items?

In order to add, change or remove menu items from the left side navigation, simply edit in file src/app/layouts/sidebar/menu.ts. You can add this menu link in "src/app/pages/pages-routing.module.ts" file where all routes are pre-defined for menus. And it will be accessible from browser.

How to change width?

In order to change the width of left side navigation bar, open a file src/assets/scss/_variables.scss and change the value of variable $sidebar-width. The default value is set to 250px.