How do I edit or delete a draft message?

1. Click on Messages in the sidebar on the left.
2. Scroll through the channels and click on the arrow at the right end to view other channels. A channel named Drafts, containing messages saved as drafts, will appear. Click on this channel.
3. Click on the message you wish to edit or delete, then click on the cog icon in the top right of the pop-up. Select Edit to make changes to the message or Delete to remove it​.