In a well known competitor’s software, if you press the backspace key it will archive the selected e-mail and also mark it as read. To achieve this in eM Client, you have to use two shortcuts (CTRL+Q and then CTRL+Shift+A).
It would be really, really nice if you could either update your archive command to also mark the message as read (which makes the most sense to me) or introduce a new command that does both and can be assigned a single keyboard shortcut.