Wanna help make invisible spawners?

An idea came to me recently that from what I've seen accomplished by this plugin I think may be doable through it. Invisible spawners.

Theory:
Replace a mob (say, one that is disabled and can only be spawned by choice/command) with an invisible armor stand and give it the ability to spawn other mobs within a specified radius.

I don't know much about this plugin, but theoretically, this is possible right?