Call me stupid but I have no idea what the function of the 'filter' button is in Apple Mail in Tahoe. It does nothing at all except say 'no message selected'. That's it. No filter options or anything. Just click it and you get that simple message even when you select a message first. For me it's pointless and I want to remove it from the toolbar along with the ellipsis button which is for showing categories, contact photos and priority messages. None of which I need/want or use. I just want an inbox with my messages in it. I don't want Apple telling me how I should view/use my messages and force what it thinks I may or may not categorise my mail as. Everyone I know has asked me how to turn off categories. Anyhoo... because of my preferences I have two icons sat in my toolbar that I don't want as I don't use them but for some reason out of all the customisation option I cannot remove these two items. Every other item, even send mail I can remove but for some reason these two pointless button I cannot. Is it bugged? Why does the filter button do nothing? And why can't I remove them but I can remove everything else from the toolbar?