[AS2 - CS5] Previewing nested movieclip animations from the parent timeline?

In the Flash authoring environment, I know that
graphic symbols let you specify a frame within that symbol’s timeline,
which you can preview from the parent timeline. The problem is then you
don’t have any way to assign that symbol an instance name.

Is there a custom class, component, or object that lets you do this? Something similar to this, but for movieclips.

I have several animations nested inside different movieclips
(necessarily so that I can manipulate them in different ways through
actionscript), that still need to animate in conjunction with each
other. The only way to do this now is to compile the swf, watch the
animation, and try to make adjustments from memory. It’d be a great help to be able to extend movieclips so that there was a more
accurate live preview.

To make it a little tougher, I’m also working with some middleware which only supports AS 2.0, so a 3.0 solution is off the table.