COMPUTER
In a personal, team, or group feed, select, "Share a post"
Type your message and add photos, videos, files, or a poll.
Select Next.
Choose the feed(s) you would like to post to.
Select Post.
APP
In the bottom tray, tap Teams/Groups.
In a personal, team, or group feed, select, "Share a post"
Type your message and add photos, videos, files, or a poll.
In the top right, tap Next.
Select additional teams or groups. In the top right, tap Post.
TIP: Default team settings require admin approval before other members can view posts.