Two settings control the commit tab: one for its interface and one for its window. You may need to perform either or both steps depending on the state of your intellij.
Windows
- Interface: Settings | Version Control | Commit, then enable
Use non-modal commit interface
- Window: go to Advanced Settings then
Enable Commit tool window
Mac
- Interface: Preferences (
⌘
+,
) | Version Control | Commit, then enableUse non-modal commit interface
- Window: go to View | Tool Windows | Commit [credit @Timofey]
For quick access to almost anything in intellij (settings, code, VCS, etc), press Shift
twice to open the search anywhere window. Copy/paste above text to get directly to both settings. [credit @Marcelo]