As I did some research over the file system in the unencrypted parts of the .000 file and from looking at screenshots of the old manual, things with MetroSim 3.0 and hints given by other users, no, you can't. Scripts appear to be in .xml files which would still be in the .000 archive. From looking at screenshots of the Beta 3.0 Manual and description mentioning the Editor mode and functionality, I assume its always in there somehow, only disabled by a line of code. There are also physical values for different weather situations although there is no weather functionality at this point. Sjoerd said at some point, that though he has the route editor, he can not see the file system, as its still in the encrypted .000 files.