Target dropdown should not include Main Components, only Artboards
The new Target dropdown in version 6.8 includes components in the list. I believe this is a mistake. Components are not valid targets, only artboards are valid targets.
If someone really needs a Component to be a Target, then put an instance of it on an Artboard. Done.
The rest of us don't need *every-single-component-in-the-whole-project* polluting the Target dropdown.