How to open multiple file diff views at once in the IDE window

Question

How can I configure IntelliJ IDEA to allow opening and viewing multiple diff windows simultaneously for various files or code segments?

Answer

Currently, all-in-one-diff is available only when comparing changes in a pull request:

However, it is possible to achieve a similar functionality for commit diff through the following workaround:

1. Open a multiple diffs as separate editor tabs
2. Split the editor screen to display multiple tabs at once, in the editor window - right-click on the tab header > Split Right / Split Down
3. Repeat the splitting action for each diff tab
4. This way many diff views can be shown at the same time in the editor window

Please note that direct support for multiple diff windows within the same instance is not implemented natively as of this writing. For additional information or progress on related features, refer to the discussion in the JetBrains issue tracker IJPL-100527.