Stage template items overlapping and not selectable

The items (instruments) in the stage template are overlapping and not individually selectable. Any command to separate them?

What VST are you using to generate you instrumental sounds? If the VST feeds everything into the same outputs of the mixer (like NotePerformer), the stage function will work with them.

Also check that your near/far distances do not include zero or infinity.

In addition to what @Derrek suggests, be sure you actually have reverb setup. Without reverb configured, all the instruments pile up at center – been there, done that.