If you are looking for the decompiler itself, visit https://github.com/jindrapetrik/jpexs-decompiler
+ update 2020: WARNING - support of the decompiler is now VERY LIMITED. There are no active developers. This means we will NOT develop new features and/or fix most of bugs. We left the tracker running in case somebody from community would like to work on it. Sorry for the inconvenience.
List of issues#1374 I am trying to copy tag with dependencies to another swf file but it messes up the scroll bar.
Author: 
timmy01502
timmy01502Date created:
Type: bug
Visibility: Everybody
Assigned to:
State: new 
It's all in the summary.
Also idk if it's a bug or it's just something that hasn't been implemented I put bug
because well it's most likely a bug.
I use nightly build latest version.