Ok. Thank you for the fast response!

Ben,

I think I figured it out. The basic approach is copying how the product-edit.php file is set up. The solution requires editing a core file (class-wcvendors-pro-dashboard.php) as well as creating a new file in a core directory. This is what seems to be working for me:

1. create a new file in the same directory as product-edit.php (mine is called settings-location.php) and put your custom page code in it

2. edit class-wcvendors-pro-dashboard.php with the part between the comment lines (the first part is just shown for context)

		// if action is set send to edit page with or without object_id else list type 
		if ('edit' == $action ) { 
			wc_get_template( $object.'-'.$action.'.php', 
				array( 
					'action' 		=> $action, 
					'object_id' 	=> $object_id 
				), 
				'wc-vendors/dashboard/', $this->base_dir . '/templates/dashboard/' );
				
/**********************************************************************/

		}
		
		// this is to get the nav menu to show up on each location page
		elseif ('location' == $action ) { // "location" is used because the custom page is at url /dashboard/settings/location/123 for example
			
			wc_get_template( 'settings-location.php', 
				array( 
					'action' 		=> $action, 
					'object_id' 	=> $object_id 
				), 
				'wc-vendors/dashboard/', $this->base_dir . '/templates/dashboard/' );

/**********************************************************************/

3. edit class-wcvendors-pro-dashboard.php again, this time with the part between the comment lines (the first part is again just shown for context)

	public function get_dashboard_pages()  { 
			
		$this->dashboard_pages[ 'product' ] = array( 
			'slug'			=> 'product', 
			'label'			=> __('Products', 'wcvendors-pro' ), 
			'actions'		=> array( 
								'edit' 		=> __('Edit', 'wcvendors-pro' ), 
								'delete'	=> __('Delete', 'wcvendors-pro' )
							)
		);

		$this->dashboard_pages[ 'order' ] = array( 
			'slug'			=> 'order', 
			'label'			=> __('Orders', 'wcvendors-pro' ), 
			'actions'		=> array()
		);

		$this->dashboard_pages[ 'settings' ] = array( 
		
/********************************************************************/
		
			'slug'		=> 'settings',
			'label'		=> __('Settings', 'wcvendors-pro' ),
			 
			//this is to get the nav menu to show up on each location page
			//'actions'		=> array( )
			'actions'		=> array( 
								'location' 		=> __('Location', 'wcvendors-pro' )
							)
							
/********************************************************************/

I think that’s it. Overall, not very straightforward, but not a huge tear up either.