If you're not using hyperbole here, you should know that you can use Shift + Escape to mark all messages as read across channels & DMs. Source: https://get.slac

If you're not using hyperbole here, you should know that you can use Shift + Escape to mark all messages as read across channels & DMs. Source: https://get.slack.help/hc/en-us/articles/201374536-Slack-keyboard-shortcuts https://get.slack.help/hc/en-us/articles/201374536-Slack-key...