Report edit menu button

Hi there,

I've added a simple custom action to a report (it just launches a stateless form) but I'm having problems getting it to show in the 'Show action in each row under menu edit' display type. When I choose the 'Show action for each record' it works fine - the button appears at the end of each row and it functions correctly. However, if I choose the 'Show action in each row under menu edit' nothing appears on the report - the default edit icon remains unchanged. Am I missing something here?

Regards.