I would like to bulk tagging for multiple page at same time via ui. When multiple pages are selected it showing only 'Social Media' Tab. I would like to add custom tab next to "Social Media" and add selection dialog, in custom tab, to select tags and Save them to selected pages. Any ideas how it can...

Could you please help me with second step? I am using aem6.5. How to create that node and what would be the file name? It would be great if you could provide sample file content. Thanks,Raj