The Help menu in Agenda is missing the Search field which is accessed via shift+cmd+/. I use this feature to find menu items without using the mouse as my arthritis means that I try to minimise mouse usage.
I realise that there are keyboard shortcuts, but if you don’t know the shortcut (as it’s hard to remember infrequently used ones), then searching is a really fast and easy way to traverse an application’s menu tree.
I’d love it if you could add Help → Search as this is the first app I’ve come across that doesn’t have it.