Besides staring you can group them in named sections. I have a section with "frequent DMs" and they stay available without auto closing. Works okayish for me.

Besides staring you can group them in named sections. I have a section with "frequent DMs" and they stay available without auto closing. Works okayish for me. According to https://slack.com/resources/using-slack/how-to-organize-your-slack-channels https://slack.com/resources/using-slack/how-to-organize-your... that seems paid-only feature