How to flash more than the fla source file into an inside fla

I have a number of fla source file, it wanted to merge together, and some said that the copy paste, but I do not understand how to stick to talking understand? Who's the matter? Have a different frame length, there are other To remedy the situation? Said that the public library how to get that copy components? I am a novice, so do not know the specific steps that troubles me a specific, first I would like to thank the

will be able to simply paste the merger is unlikely, as you said a different running animation paste and so on.

the key is you have to understand that you have to do animation.
1.Separate, of course, can make the film clip.
2.Other only required to trigger the frame.