TYPO3 Core

The intention is to add a new click menu in the page tree redirecting to a backend module with the selected page uid.

Following [[https://docs.typo3.org/typo3cms/CoreApiReference/6.2/JavaScript/UsingExtjs/PageTree/?highlight=click#context-menu-custom-callbacks]], you can use "callbackAction = openCustomUrlInContentFrame" and configure the URL in "customAttributes.contentUrl". In 6.2 you can use the function getModuleUrl to generate the URI:

$clickMenuUrl = \TYPO3\CMS\Backend\Utility\BackendUtility::getModuleUrl(
    'txmymodule',
    array('id' => '###ID###')
);

So ###ID### is expected to be replaced by the according Ext.js function "openCustomUrlInContentFrame" (actions.js).
Unfortunately, the parameters of the generated URL are URI encoded, so that there is no chance to replace ###ID###. It is submitted as %23%23%23ID%23%23%23 instead.
Automatical replacement of the dynamic ID parameter doesn't seem to work at the moment.