I think all scenes have that option if I'm not mistaken. You can find the template browser button below the Scene Browser's in the UI.
The difference is that if you mark it with "add as template" it shows in the template browser window. As you can't have categories in the Scene Browser the Template Browser can be seen as a special filter browser to quickly access those scenes.
Mind you they don't have to be template like scenes, you can use it as you like.