You can choose a set of templates saved in your sandbox space by using an appropriate sandbox prefix. For example, if you want to preview a version of داڕێژە:Test that you have saved as "بەکارھێنەر:Foo/پەڕەی ئەزموون/داڕێژە:Test", use "بەکارھێنەر:Foo/پەڕەی ئەزموون" as the prefix.