Use different tool to display the diff in the Commit window

When right-clicking on a file, I can choose Visual Diff and it opens in KDiff3.

I would like to use its output immediately in t开发者_StackOverflowhe Commit window. Is this currently possible? kdiff3 is set as Three-way Merge Tool and as Visual Diff Tool, and the extdiff extension is enabled.

---

According to the documentation that is not possible. You can suggest this feature to developers via discussion, developer or issue list.