Right now you can see the file differences between two points in the history by multi-selecting or right-clicking and selecting 'Diff against current', but you cannot see the commits themselves. It would be useful to be able to filter the log in different ways, such as:

1. What commits are in branch A and not branch B? https://answers.atlassian.com/questions/103093/customized-git-log-output?page=1#comment-103444
2. What commits will be pushed next?

It might make sense for this feature to be in the Search view as a different option, since depending on the filter the graph might not make any sense.