I am on a development team with some members who have accidentally committed changes to svn:externals. Most of our svn:externals are in the same repo (different projects in a large repo).
I would like to request a feature to visually distinguish those svn:externals, and to disable commits to them in the TSVN commit dialog box. We rarely (if ever!) want to commit svn:externals changes. In other words, if project A has an svn:externals to project B, then correct way to do this in our team is to check out project B separately, make the changes there, and then update the svn:externals in project A to point to the new version of B. (I understand the convenience factor for some developers, but we would rather be explicit about committing separately to separate projects.)
There is a clear visual distinction for files in other repositories:

but not for the same repo. I don't like the existing "Show externals from different repositories" checkbox behavior; I want to see if there are changes in svn:externals, but I do not want to modify them as part of the commit.