Any objections from other users to close this issue?

Will be present in upcoming 18.2 preview.

Will be present in upcoming 18.2 preview.

> So would/should the pseudo Working Tree and Index commits exist if there is nothing in them?

That's optional.

> Does the Working Tree include uncommitted and missing files and modified files or only staged files?

The Working Tree will contain exactly those files which you will see in current SmartGit's main window. The Index node will only show staged files.

Work is in progress, unfortunately not yet ready to be published.