Examples

Display "Save" and "Cancel"

<?$APPLICATION->IncludeComponent('bitrix:ui.button.panel', '', [
    'BUTTONS' => ['save', 'cancel' => '/company/list/']
]);?>

Display "Save", "Cancel" and checkbox "Save in my templates"

<?$APPLICATION->IncludeComponent('bitrix:ui.button.panel', '', [
    'BUTTONS' => [
    	'save', 
    	'cancel' => '/company/list/', 
    	[
    		'type' => 'checkbox',
    		'name' => 'save_as_template',
    		'caption' => 'Save in my templates',
        ]
    ]
]);?>

Display "Save", "Apply" and "Cancel"

<?$APPLICATION->IncludeComponent('bitrix:ui.button.panel', '', [
    'BUTTONS' => ['save', 'apply', 'cancel' => '/company/list/']
]);?>

Display "Close"

<?$APPLICATION->IncludeComponent('bitrix:ui.button.panel', '', [
    'BUTTONS' => ['close' => '/company/list/']
]);?>

Display you own html in panel

<?$APPLICATION->IncludeComponent('bitrix:ui.button.panel', '', [
    'BUTTONS' => ['custom' => '<span>My content</span>']
]);?>