I'm using the 'support system' plugin with a Multisite Installation which already has a top-level 'Help' admin menu. I've added the tickets and FAQs screens as subitems of my help menu using add_submenu_page but am unable to remove the main Support menu. I've tried using remove_menu_page but it doesn't work.
I'm working on a local development version of the site now so can't provide a link but attach a screenshot in case that's helpful.
I hope someone can help.