How to add addition settings in node edit page on rightside bar
The key is to implement hook_form_node_form_alter function to add settings to node edit page. I did this by applying patch specified in https://www.drupal.org/project/redirect/issues/2702353.

I specified a wrong module in my question (There were confusion, because both the modules showing same text), actual module that was showing settings in admin pane was redirect module not url_redirect. 

I keep this answer here that may help someone who come across the same question I had.