If your component tabs are starting to pile up, you can save space in by collapsing multiple related tabs into a single one.
Dividers and a light blue color are used to show which component tabs are related and will form a group:
To collapse one group of component tabs, use the arrow icon to the right of the name of any tab in the group:
You can also right-click on the tab and select Minimize from the menu:
The tab that is selected when you collapse the tabs, in this example the Characters tab, is placed on top of the group. Collapsed groups have a bar on the side to indicate that they contain more tabs than are currently visible:
Clicking the bar indicator selects the top tab. To access any of the other component tabs in the group, you must first expand it by clicking the arrow (now facing right) to the right of the name of the tab:
You can also right-click on the tab and select Maximize from the menu: