This is an example of how to add widgets to the UCM dashboard

custom_dashboard_widgets.php

<?php

// upload this file to includes/plugin_custom_dashboard_widgets/custom_dashboard_widgets.php

class module_custom_dashboard_widgets extends module_base{

    public static function can_i($actions,$name=false,$category=false,$module=false){
        if(!$module)$module=__CLASS__;
        return parent::can_i($actions,$name,$category,$module);
    }
	public static function get_class() {
        return __CLASS__;
    }
    public function init(){
		$this->links = array();
		$this->module_name = "custom_dashboard_widgets";
		$this->module_position = 1;
        $this->version = 1;

		hook_add( 'dashboard_widgets', 'module_custom_dashboard_widgets::my_widgets' );
    }

	public static function my_widgets() {
		$widgets = array();

		// start first widget:
		ob_start();
		?>
		<div>
	        Put your Widget HTML Code Here
		</div>
		<?php
		$widgets[] = array(
            'title' => "My Widget Title",
			'columns' => 2, // this can be 1, 2, 3 or 4
			'content' => ob_get_clean(),
		);
		// end first widget.

		// start second widget:
		ob_start();
		?>
		<div>
	        Put your Widget HTML Code Here
		</div>
		<?php
		$widgets[] = array(
            'title' => "My Widget Title",
			'columns' => 2, // this can be 1, 2, 3 or 4
			'content' => ob_get_clean(),
		);
		// end second widget.


		return $widgets;
	} // end hook function

}