Well, I got a zip-file of an Xpedition project which wasn't designed on our system. We want to modify the schematic and after packaging also the layout. Since all symbols and cells are not from our central library there are (in my opinion) two alternatives to do this:
1. I create all symbols and cells by myself and put them in the CL or
2. There is a possibility to copy these symbols and cells to our CL.
Of course the last option would be really great.
However, if there is a script available to do this, how I have to implement it to make use of it?