Provide access to files for uncommitted changes
We use Code Collaborator to peer review our SQL code before we submit to our version control (Perforce). This is typically done using a pending changelist, which is probably specific to Perforce. However, it would be sufficient to merely have SQL Source checkout and update the files in the working directory before/without committing.

In SQL Source Control v3.4, there is an option to link to a working folder. If you use this option, on the commit tab, you can “save” your changes to the working folder. This scripts out the objects to files. You can then use your own tool to review the changes and add them to the changelist and commit them using your own source control system’s client tool.