Need a way in web and mobile apps to mark multiple messages as read at once.

Currently, both in the web and (at least Android) mobile apps, we have to open each  Pushover message/notification, in order to acknowledge it and/or mark it as read.  Neither UI seems to offer any way to select multiple messages at once, to perform an action on multiple messages, like "Mark as Read" or "Acknowledge" (which I'd presume would also mark the selected messages as read).  When we receive several notifications/messages at once, it can be frustratingly tedious to have to open each message to mark it as read, and/or acknowledge it, in cases when we don't need to (re-)read each new message.  Adding the above-requested functionality would save Pushover users a lot of time and frustration when they are bombarded with several new push messages.