Newest #Pachli Current makes it easier to manage tabs.

1.A timeline not in a tab has a new "Add to tab" menu / toolbar button
2. A timeline in a tab has a new "Remove tab" menu
3. Viewing tabs shows a new "Manage tabs" menu, a shortcut to Account preferences > Tabs

"Trending" tabs (hashtags, links, posts) have new icons instead of sharing an icon.