Edit --- Select All -- Move to Trash buttons
Title says it all, some other email clients have this feature and I use airmail on my Mac as well as my iPhone and would love to see this implemented into both clients. On the Mac client you are able to ctrl-a all of your emails (and then ctrl-click to deselect any you want to keep but I would love to see a button on the Mac as well as iPhone client. Doing well developers!
J Carlin commented
On iPad or phone, if you hold your finger on any email in the left panel the emails become selectable and you can select all or any number of them, if any are selected a menu at the top appears designated by 3 dots, when you touch the dots a window opens with all kinds of choices.
On Mac you can select by cmd-clicking or shift clicking or cmd-a in either case other menu choices are given once an email is selected.
you can do this with a long press + selecting the "select all" button at the top right? or are you looking for different functionality?