Currently in order to add a domain, or any rule to a filter you have to exit the email you want to filter, click the gear icon, go to all settings, find the filter section, sort through a ton of stupid filters, click edit, jump through hoops, enter the information you might have already forgetten, at which point you have to exit back to your inbox, find the email, and repeat the process, then save the filter, and sometimes it will run it, sometimes it won't, it's a terrible way to do it. Email clients for decades, going back to the **** 90s, let you press a button to add to a filter and pick one of the existing ones. Why can't we do this?