Looks like a duplicate of https://smartgit.userecho.com/communities/1/topics/807-log-show-differences-recursive-into-submodules

Please describe more precisely where exactly you want to see what? Do you mean something like the Submodule display in the Repositories view of the Log window?

Use Split Commit for that purpose.

Note, that with Modify Commit you can step through your commits like with a debugger.

Should work now in SmartGit 24.1 preview 9.

In the Working Tree or Log window right-click your local branch and select "Set Tracked Branch".

Could you please describe the use case in more details? Do you want to "show all except of feature branches"?

Please keep in mind that other users might use network shares or removable disks.

You already should be able to set a shortcut even if it duplicates another. You will get asked whether to unset or keep the other.

In the Repositories view's hamburger menu you can find an item to select all obsolete repositories.