Flash MX : Can external MC's control main timeline?

Hey quick question…can a movie clip which is loaded from an external source control the main timeline? For example I have a set of buttons contained within a movie clip which is loaded externally onto my main timeline…can those buttons direct the swf to a specific frame on the main timeline? Also…is there any way to load an external movie clip into a specific LAYER rather than Level? Maybe these seem like stupid questions but any one who can gimme a little help to an actionscript noob like me - thanks a lot! :slight_smile: