I have a script in my project where I need to split a single file between several projects in the same solution. Back in my safe days, Visual Source (Shudder), I would use the Share option to allow me to make changes to this file anywhere. Then, once it was verified, I could guarantee that other locations would receive the update.

I am trying to do this in Subversion, but I cannot find the option anywhere. I know about svn: externals, but I'm only interested in sharing a single file between multiple locations.
Does anyone know how to do this in Subversion?
thanks
Edit
In the end, I decided to use the sharing capabilities in visual studio. It works exactly the same as the resource used to work in Visual Source safe. That is, I need to support only one file, and both of them are updated.
To do this, you can add an existing element β Then click "Add" as a link from top to bottom right.
svn visual-sourcesafe share
Crafttyfella
source share