Once you have linked your account, you can start making Captures from Slack!
Hover over the Slack message you want to save and select More Actions (3 dots) and in More message shortcuts search and select OnLoop.
[OR]
Scroll down to apps, + Add app, search and click on OnLoop. The OnLoop Slack app will remain on your sidebar for easy access.
<aside> 🚀 Tip: Type "/capture help" + Enter in any channel or chat (don't worry, it won't go to anyone!) for instructions on how to Capture
</aside>
They'll only be stored in the inbox, so view from there, and then save!