I use Django, and when changes are made to any file named models.py, then accompanying migrations need to be done and committed along with the code changes.  I sometimes forget to do the migrations.  Since SourceTree is already watching for changes to files, I would like to be able to specify a REGEX for filenames to watch which, when changed, would trigger a bright orange message (perhaps beside the 'unstaged files' label) that would prompt me to also include in a particular commit the migrations that were associated with the code changes made in the commit.  The setting could include allowing the user to specify both a file REGEX and the text of the message.  Taking my example, when files named "models.py" are changed, then this message (that I specify) is displayed:  Include Migrations.  The display of this prompt would work similar to how the flag displays in the upper right when a new version is available.  This would be SUCH a helpful feature!