Extended Outliner helps you keep tracking pinned characters. Outliner shows their ages, opinions, relations and titles now.
Note: You can’t unlock achievements.
For advanced users:
1. You can switch between two modes. To do so, right-click the top bar says Pinned Characters.
2. You can move Outliner freely. To do so, drag it by its body (blank part).
Update: Merged confusing two modes into one. Fixed an automatic closing issue.