SmartGit already greatly eases this process, just not using the prior commit select list.

Configure SmartGit:

• Set SmartGit preference Low-level properties "git.rebaseInteractive.autoSquash" to "true".
• Set SmartGit preference Low-level properties "log.useCommitMessage.prefix" to "fixup! ". note the space after !

Then can:

1. Select the commit to fixup, press Ctrl+Shift+k (from graph or log window).
2. See SmartGit populate the Commit view with the commit message prefixed with fixup!.
3. Commit.
4. Select the commit to rebase interactive from and do it.
5. See SmartGit has autosquashed.

Great idea to add context as I see multiple people struggle with this.

Yes, good one - I've encountered temporary confusion by the red highlighting!

Use Window menu: Window -> Repositories

Note the Ctrl+Shift+1 keyboard shortcut.

Also, if you are using the "Standard Window", I highly recommend using the "Log Window".  It's Repositories View and functionality is excellent and much more functional.

Are you aware of the "Repositories View"?  It lists the repos with a colorized indicator showing its current branch's commits status (incoming and/or outgoing commits available).  The repository name is not colorized, but the indicator is.

> A button in the SmartGit PR dialog like "Create on GitHub"

Yes!! I think this is a great idea.  I too strongly prefer the SG Create PR dialog and don't want to launch to separate app (browser page) to complete.  This idea allows best of both worlds - when the dialog "isn't enough", the quick access to the Git product's web page solves the problem.

In addition to a view/edit dialog, I suggest also adding the branch description to the tool tip.

Displaying in the Branches view may be difficult to display well, so I do not expect it there.

Wondering if this feature is anywhere on the implementation planning radar?  It's one of the key usability features we encounter on a daily basis.

I suggest adding a "Commit Message Preview" box showing the resulting commit message.

Reasonable.  I rarely use the Discard to Stash.